Digital Television
Digital Television (DTV) is an advanced broadcasting technology that will transform your television viewing experience. DTV enables broadcasters to offer television with better picture and sound quality. It can also offer multiple programming choices, called multicasting, and interactive capabilities.

Converting to DTV also will free up parts of the scarce and valuable broadcast spectrum. Those portions of the spectrum can then be used for other important services, such as public and safety services (police and fire departments, emergency rescue), and advanced wireless services.

The Transition to Digital TV
TV stations serving all markets in the United States are airing digital television programming today, although most will continue to provide analog programming through February 17, 2009. At that point, full-power TV stations will cease broadcasting on their current analog channels, and the spectrum they use for analog broadcasting will be reclaimed and put to other uses.
The Commission's digital tuner rule specifies that as of March 1, 2007, all new TVs must include digital tuners. This rule prohibits the manufacture, import, or interstate shipment of any device containing an analog tuner, unless it also contains a digital tuner. Despite this prohibition on manufacture and shipment, retailers may continue to sell analog-only devices from existing inventory. As a result, at the point of sale, many consumers may not be aware that this equipment will not be able to receive over-the-air-television signals after February 17, 2009.

To address this issue, the FCC has adopted a rule requiring sellers to display the following text if they are selling TV equipment with only an analog broadcast tuner:

Consumer Alert
This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009, to receive over-the-air broadcasts with an antenna because of the Nation’s transition to digital broadcasting. Analog-only TVs should continue to work as before with cable and satellite TV services, gaming consoles, VCRs, DVD players, and similar products. For more information, call the Federal Communications Commission at 1-888-225-5322 (TTY: 1-888-835-5322) or visit the Commission’s digital television website at: www.dtv.gov .
Analog TVs Will Need Additional Equipment to Receive Over-the-air Television When the DTV Transition Ends
Consumers who rely on antennas (including outside antennas and "rabbit ears") to receive over-the-air broadcast signals on TV sets having only analog tuners will need to obtain separate digital-to-analog set-top converter boxes to watch over-the-air TV. These boxes receive digital signals and convert them into analog format for display on analog TVs. Analog sets connected to such converter boxes will display digital broadcasts, but not necessarily in the full, original digital quality.

Converter Box Coupon Program
Between Jan. 1, 2008, and March 31, 2009, all U.S. households will be eligible to request up to two coupons, worth $40 each, to be used toward the purchase of up to two, digital-to-analog converter boxes. The National Telecommunications and Information Administration (NTIA) has responsibility for administering the coupon program. More information can be found at www.dtv2009.gov.

Cable and Satellite TV
Cable subscribers may need new DTV equipment to view DTV programming in digital format. You should ask your cable provider what you will need and when.

Satellite subscribers may need new DTV equipment to receive and view high definition digital programming. You should ask your satellite company what you will need and when.

Digital television Quality Levels
There are many quality levels of digital television programming. The most common are:
• Standard Definition TV (SDTV) - SDTV is the basic level of quality display and resolution for both analog and digital. Transmission of SDTV may be in either the traditional (4:3) or widescreen (16:9) format.
• Enhanced Definition TV (EDTV) - EDTV is a step up from Analog Television. EDTV comes in 480p widescreen (16:9) or traditional (4:3) format and provides better picture quality than SDTV, but not as high as HDTV.
• High Definition TV (HDTV) - HDTV in widescreen format (16:9) provides the highest resolution and picture quality of all digital broadcast formats. Combined with digitally enhanced sound technology, HDTV sets new standards for sound and picture quality in television. (Note: HDTV and digital TV are not the same thing -- HDTV is one format of digital TV.)

Digital Television Facts At A Glance

Analog DTV HDTV
• Date for final transition to digital is February 17, 2009. After that date, full-power stations will only broadcast digital signals.
• Consumers will always be able to connect an inexpensive receiver, a digital to analog converter box, to their existing analog TV to decode DTV broadcast signals.
• Digital to analog converter boxes will not convert your analog TV to high-definition.
• Analog TVs will continue to work with cable, satellite, VCRs, DVD players, camcorders, video games consoles and other devices for many years. • Digital cable or digital satellite does not mean a program is in high-definition.
• Digital pictures will be free from the "ghosts" and "snow" that can affect analog transmissions.
• Multicasting is available.
• HDTV is available.
• Data streaming is available. • High-definition broadcasts offered.
• Best available picture resolution, clarity and color.
• Dolby theatre surround-sound.
• Dolby surround-sound.
• Wide screen "movie-like" format

What is the digital TV (DTV) transition?
The switch from analog to digital broadcast television is referred to as the digital TV (DTV) transition. In 1996, the U.S. Congress authorized the distribution of an additional broadcast channel to each broadcast TV station so that they could start a digital broadcast channel while simultaneously continuing their analog broadcast channel. Later, Congress mandated that February 17, 2009 would be the last day for full-power television stations to broadcast in analog. Broadcast stations in all U.S. markets are currently broadcasting in both analog and digital. After February 17, 2009, full-power television stations will broadcast in digital only.

Why are we switching to DTV?
An important benefit of the switch to all-digital broadcasting is that it will free up parts of the valuable broadcast spectrum for public safety communications (such as police, fire departments, and rescue squads). Also, some of the spectrum will be auctioned to companies that will be able to provide consumers with more advanced wireless services (such as wireless broadband).
Consumers also benefit because digital broadcasting allows stations to offer improved picture and sound quality, and digital is much more efficient than analog. For example, rather than being limited to providing one analog program, a broadcaster is able to offer a super sharp “high definition” (HD) digital program or multiple “standard definition” (SD) digital programs simultaneously through a process called “multicasting.” Multicasting allows broadcast stations to offer several channels of digital programming at the same time, using the same amount of spectrum required for one analog program. So, for example, while a station broadcasting in analog on channel 7 is only able to offer viewers one program, a station broadcasting in digital on channel 7 can offer viewers one digital program on channel 7-1, a second digital program on channel 7-2, a third digital program on channel 7-3, and so on. This means more programming choices for viewers. Further, DTV can provide interactive video and data services that are not possible with analog technology.

What do I need to do to be ready for the end of analog TV broadcasting?
Because Congress mandated that the last day for full-power television stations to broadcast in analog would be February 17, 2009, over-the-air TV broadcasts will be in digital only after that date. If you have one or more televisions that receive free over-the-air television programming (with a roof-top antenna or “rabbit ears” on the TV), the type of TV you own is very important. A digital television (a TV with an internal digital tuner) will allow you to continue to watch free over-the-air programming after February 17, 2009. However, if you have an analog television, you will need a digital-to-analog converter box to continue to watch broadcast television on that set. This converter box will also enable you to see any additional multicast programming that your local stations are offering.
To help consumers with the DTV transition, the Government established the Digital-to-Analog Converter Box Coupon Program. The National Telecommunications and Information Administration (NTIA), a part of the Department of Commerce, administers this program. Every U.S. household is eligible to receive up to two coupons, worth $40 each, toward the purchase of eligible digital-to-analog converter boxes. You will be able to request the coupons beginning in January of 2008. The coupons may only be used for eligible converter boxes sold at participating consumer electronics retailers, and the coupons must be used at the time of purchase. Manufacturers estimate that digital-to-analog converter boxes will sell from $40 to $70 each. This is a one-time cost. For more information on the Digital-to-Analog Converter Box Coupon Program, visit the NTIA’s website at www.ntia.doc.gov/dtvcoupon , or call 1-888-388-2009 (voice) or 1-877-530-2634 (TTY).
Cable and satellite TV subscribers with analog TVs hooked up to their cable or satellite service should not be affected by the February 17, 2009 cut-off date for full-power analog broadcasting.

Do I have to wait until after February 17, 2009 to watch DTV?
No, digital television is available now. If you watch over-the-air television today, you should be able to receive all or most of your local stations’ digital signals if you have a DTV receiver. You may view high definition and multicast programming from your local stations. Check your local program listings or contact your local TV stations to find out more about the digital television available now. The FCC’s special website, www.dtv.gov , has more information on digital television, or call 1-888-225-5322 (TTY: 1-888-835-5322).
Will the February 17, 2009 date for the end of full-power analog television broadcasting be pushed back?
Federal law mandates that February 17, 2009 is the last day of full-power analog television broadcasting. Government agencies, industry, public interest groups, and other interested organizations are working hard to make sure that the deadline is met and that everyone is prepared for the end of full-power analog television broadcasting.
If I have an older analog television, will I have to throw it away after February 17, 2009?
No. A digital-to-analog converter box will allow you to continue using your existing analog TV to watch over-the-air digital broadcasts. You do not need to get rid of your existing analog TV. In addition, analog sets should continue to work as before if connected to a subscription service such as cable or satellite TV. Also, analog sets should continue to work with gaming consoles, VCRs, DVD players, and similar products that you use now.

Your Television
If I want a new TV, will I have to buy a High Definition TV (HDTV) to watch digital broadcast television after the transition?
No. It is important to understand that the DTV transition is a transition from analog broadcasting to digital broadcasting. It is not a transition from analog broadcasting to High Definition broadcasting. Digital broadcasting allows for High Definition broadcasts, but High Definition is not required, and you do not need to buy a HDTV to watch digital TV. A Standard Definition DTV (which is simply a TV with an internal digital tuner), or a digital-to-analog converter box hooked to an analog TV, is all that is required to continue watching over-the-air broadcast television. Digital broadcast television includes Standard Definition (SD) and High Definition (HD) formats. You can watch High Definition programming on a Standard Definition DTV (or on an analog TV hooked to a digital-to-analog converter box), but it won’t be in full High Definition quality. It is also important to know that Standard Definition DTVs are comparably priced to similar sized analog TVs.

How can I be sure that I am buying a digital TV (DTV)?
By law, beginning March 1, 2007, all television reception devices (including TVs, VCRs, DVRs, etc.) imported into the U.S. or shipped in interstate commerce must contain a digital tuner. Retailers may continue to sell analog-only devices from existing inventory, but must prominently display on or near the analog-only device a Consumer Alert label with this advisory:
Consumer Alert
This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009, to receive over-the-air broadcasts with an antenna because of the Nation’s transition to digital broadcasting. Analog-only TVs should continue to work as before with cable and satellite TV services, gaming consoles, VCRs, DVD players, and similar products. For more information, call the Federal Communications Commission at 1-888-225-5322 (TTY: 1-888-835-5322) or visit the Commission’s digital television website at: www.dtv.gov .
Therefore, all television equipment being sold should contain a digital tuner, or should be identified at the point-of-sale as not having one. Be aware of this label and the limitations of analog-only devices if you are purchasing a new TV or other TV equipment.

How do I know if I already have a digital TV (DTV)?
Many DTVs and digital television equipment will have labels or markings on them, or statements in the informational materials that came with them, to indicate that they contain digital tuners. These labels or markings may contain the words “Integrated Digital Tuner,” “Digital Tuner Built-In,” “Digital Receiver,” or “Digital Tuner,” “DTV,” “ATSC,” or “HDTV” (High Definition television). If your television equipment contains any of these labels or markings, you should be able to view digital over-the-air programming without the need for a digital-to-analog converter box. (Remember, you do not need an HDTV to view free over-the-air digital programming. As long as your television equipment contains a digital tuner, you can view over-the-air digital. An HDTV is only necessary if you want to view High Definition programming in full HD quality.) You should also check the manual or any other materials that came with your television equipment in order to determine whether it contains a digital tuner.

If your television set is labeled as a “Digital Monitor” or “HDTV Monitor,” or as “Digital Ready” or “HDTV Ready,” this does not mean it actually contains a digital tuner. Thus, you still will likely need a separate set-top box which contains a digital tuner in order to view over-the-air digital programming.

Over-the-air digital set-top boxes for Digital or HD “Monitors” can be purchased at retail stores. Cable and satellite TV providers also sell or lease digital set-top boxes for their specific services. (Note: the digital set-top box described here is not the same as the digital-to-analog converter box, described above, used to convert free over-the-air digital broadcasts for viewing on an analog TV set.)

If your television set is labeled as “analog” or “NTSC,” and is NOT labeled as containing a digital tuner, it contains an analog tuner only.

If you cannot determine whether your television set or other television equipment contains a digital tuner, you are advised to check your equipment for the manufacturer name and model number, and then contact your consumer electronics retailer, or the manufacturer, to determine whether it contains a digital tuner. This information also may be available online through the manufacturer’s website.

Because most broadcast stations in all U.S. television markets are already broadcasting in digital, consumers can watch DTV today. You can contact your local broadcast stations to determine the channel numbers on which the stations are currently broadcasting digital programming. You should then ensure that your television is set up to receive over-the-air programming (as distinguished from being connected to a paid provider such as cable or satellite TV service), and then tune to the over-the-air digital channels to see if your set can receive the digital broadcast programming.

What is the difference between “Integrated” DTVs and DTV or HDTV “Monitors”?
An Integrated DTV set is a television with a built-in digital tuner (also referred to as “a DTV”). A digital tuner is also sometimes called a DTV decoder or DTV receiver. If you have an Integrated DTV, you will not need any additional equipment, with the exception of a broadcast antenna (either a rooftop antenna or “rabbit ears” connected to the set), to receive over-the-air digital broadcast programming. Integrated DTVs can also receive and display analog broadcast programming, so you can continue watching analog broadcasts.
In contrast, a DTV Monitor is not capable of receiving digital broadcast programming without additional equipment; it is simply a display device without the processing capability for DTV reception. A digital or HD set-top box must be connected between the antenna and the monitor to receive and display over-the-air digital or HD programming.
If you have a digital or HD “Monitor” and would like to purchase a digital or HD set-top box to view over-the-air programming, confirm with your retailer that the set-top box is compatible with your Monitor.

What about my VCR, DVD player, camcorder, and gaming console? Will I be able to use them with a digital television set?
Yes. Digital television sets are “backward compatible,” meaning existing analog equipment (VCRs, DVD players, camcorders, video games, etc.) will work on digital TV sets. However, their video will only be displayed in the maximum resolution that is available with each analog product. Manufacturers are producing a number of different connectors to hook equipment together and improve picture and sound quality when DTVs are used with existing analog equipment. Check with your retailer to determine the types of connectors that will work with your equipment.

How do I get DTV or HDTV programming?
In order to receive over-the-air digital programming (as opposed to digital programming provided by a paid provider such as cable or satellite TV service), you will need: (1) a DTV (a TV with a digital tuner) or an analog TV connected to a digital-to-analog converter box and (2) a broadcast antenna (either a rooftop antenna or “rabbit ears” connected to your set). In general, an antenna that provides quality reception of over-the-air analog TV broadcasting will work for digital TV broadcasting.
A listing of the U.S. TV stations that are broadcasting digital programming is available at http://www.fcc.gov/mb/video/files/dtvonair.html . Satellite TV providers and many cable systems are currently offering digital programming. Subscribers should check with their service providers to see what digital programming is available in their area.

Will I need a special antenna to receive DTV over-the-air?
In general, dependable reception of over-the-air digital TV programming will require the same type of signal reception equipment that currently works to provide good quality reception of analog TV programming. If you need a roof-top antenna to receive analog TV broadcasts, the same antenna generally will work to receive digital TV broadcasts. You should not have to purchase new antennas that are marketed as “digital ready” or “HD ready.”

What will happen to the old analog TVs that will be replaced by DTVs? Will there be an effort to recycle them?
There are recycling programs for those who choose to discard old analog TVs or other old electronic products (but remember, analog TVs can continue to be used after the transition). One such program is myGreenElectronics. Through this program you can learn about disposal options and locate recycling programs near you. Go to http://www.mygreenelectronics.org  for more information.

Cable
How do I know if I already have digital programming through my cable or satellite TV service?
You may receive digital programming if you subscribe to a digital or HD package from your provider and you are viewing the digital programming on a digital set. However, the digital cable tier and satellite TV service are not necessarily DTV. Your cable or satellite TV system may be using digital technology as a more efficient way of delivering analog programming to you. If you have an analog television set, then you are probably not getting digital, even though the reception may be somewhat improved. Check with your cable or satellite TV provider to find out what kinds of programming you can receive, and what equipment you need to receive it.

My cable operator offers a digital cable package. Is this the same as HDTV?
No. “Digital cable” and high definition programming on cable are not the same. If you want to watch HDTV programming on cable, you will need to subscribe to your cable provider’s HDTV package and view the programming on an HDTV set. You may also need a set-top box or other equipment to view HDTV programming. Check with your cable provider to find out what kinds of programming you can receive, and what equipment you need to receive it.

Do cable TV networks, like CNN, MSNBC, Lifetime, etc., have to switch to digital broadcasting as well?
No. The current requirement to switch from analog to digital only applies to full-power broadcast TV stations, which use the public airwaves to provide free over-the-air programming. However, as cable providers convert to digital transmissions over their systems, you may need to subscribe to their digital tier to continue to receive this non-broadcast programming.
Can my cable system move programming to a digital tier that makes me subscribe to digital service?
Your cable system decides when and whether to carry programming on a digital tier, which may mean that you will need digital equipment. However, all of your local stations will continue to be available in analog format for as long as your cable system offers any analog service.

Will cable customers with analog TVs have to buy or rent a set-top box from their cable company? If so, how much will it cost?
First, it's important to know that the February 17, 2009 deadline for the digital television transition only applies to full-power broadcast stations. Cable companies are not required by the government to transition their systems to digital, and can continue to deliver channels to their customers in analog. Cable companies are actually required by FCC rules to continue offering local broadcast stations to their customers in analog as long as they offer any analog service. This requirement will continue for at least three years after February 17, 2009. The Commission will decide in 2011 whether the requirement should be continued beyond February 17, 2012. This means that customers who receive analog cable service (without a cable set-top box) will be able to continue to do so.

However, for business reasons (among other things, digital is much more efficient than analog), cable companies may be interested in transitioning their systems from analog delivery to digital delivery. If a cable company makes the business decision to go all-digital (meaning it will stop offering any channels to its customers in analog), it must ensure that its analog customers can continue to watch their local broadcast stations. This may require customers with analog televisions to get a set-top box. If the cable company provides the customer with a set-top box, any costs related to it will be determined by the cable company. Therefore, it is recommended that analog cable customers contact their cable company to ask if a set-top box will be needed, when it will be needed, and if there will be a cost.

It is also important to note that a cable set-top box is different from a digital-to-analog converter box. A digital-to-analog converter box is necessary only for analog televisions that receive their programming over-the-air using a rooftop antenna or "rabbit ears" connected to the set. A digital-to-analog converter box is not necessary for a TV connected to a paid television service such as a cable or satellite TV provider. Information on any set-top boxes needed for a paid service such as cable or satellite should be obtained from the service provider.

Converter Box
What is the Converter Box Coupon Program?
To help consumers with the DTV transition, the Government established the Digital-to-Analog Converter Box Coupon Program. The National Telecommunications and Information Administration (NTIA), a part of the Department of Commerce, administers this program. Every U.S. household is eligible to receive up to two coupons, worth $40 each, toward the purchase of eligible digital-to-analog converter boxes. You will be able to request the coupons beginning in January of 2008. The coupons may only be used for eligible converter boxes sold at participating consumer electronics retailers, and the coupons must be used at the time of purchase. Manufacturers estimate that digital-to-analog converter boxes will sell from $40 to $70 each. This is a one-time cost. For more information on the Digital-to-Analog Converter Box Coupon Program, visit the NTIA’s website at www.ntia.doc.gov/dtvcoupon , or call 1-888-388-2009 (voice) or 1-877-530-2634 (TTY).

What digital to analog converter boxes are coupon eligible?
The National Telecommunications and Information Administration (NTIA) is maintaining a list of eligible boxes at www.ntiadtv.gov/cecb_list.cfm .

Can I hook up more than one TV and video recorder to a single digital-to-analog converter box?
You will need one digital-to-analog converter box for each TV set or other device (such as a VCR) that only has an analog tuner. The digital-to-analog converter box basically replaces the analog tuner in one piece of equipment. So if you want to use your analog TV and VCR at the same time (for example, to watch one program and record another simultaneously), you will need two digital-to-analog converter boxes.

Will digital-to-analog converter boxes (used to convert over-the-air digital TV broadcasts for viewing on analog sets) also convert digital closed captioning?
Yes. FCC rules require that digital-to-analog converter boxes be able to convert over-the-air digital closed captioning for display on analog TV sets. See http://www.fcc.gov/cgb/consumerfacts/dtvcaptions.html .
I have an old antenna that attaches to my TV with two wires. Will I be able to use a converter box with this antenna?
Yes, but you may need to get an antenna adapter (also called a “balun”) to which you will connect your antenna on one end, and then connect the balun to your converter box. You will then need a second adapter to connect to the converter box with a length of antenna wire to connect to your TV.


General Questions
What about my portable, battery-powered analog TV? Will I be able to use it to watch broadcast TV after February 17, 2009?
Portable, battery-powered analog TVs may be able to receive over-the-air programming after February 17, 2009 if they have the necessary plugs to allow them to be connected to a digital-to-analog converter box. Because it is not anticipated that battery powered digital-to-analog converter boxes will be produced, an external power source would also be required.
What are low-power (LPTV), Class A, and TV translator stations and how does the DTV transition affect them?
You may have noticed that Congress mandated that “full-power” TV stations will not be able to broadcast in analog after February 17, 2009. While the majority of the viewed TV broadcast stations are full-power stations, three other categories of TV stations exist – “low-power” stations, “Class A” stations, and “TV translator” stations. There is currently no deadline for these stations to convert to digital broadcasting.

The FCC created low-power television (LPTV) service in 1982 to provide opportunities for locally-oriented television service in small communities. These communities may be in rural areas or may be individual communities within larger urban areas. LPTV stations are operated by diverse groups and organizations including high schools and colleges, churches and religious groups, local governments, large and small businesses and individual citizens. More than 2,100 licensed LPTV stations are in operation. LPTV programming can include satellite-delivered programming services, syndicated programs, movies, and a wide range of locally-produced programs.

Class A TV stations are former LPTV stations that have certain interference protection rights not available to LPTV stations. These stations are technically similar to LPTV stations, but unlike LPTV stations must air at least three hours of locally-produced programming each week and comply with most of the non-technical regulations applicable to full-power stations. Approximately 600 licensed Class A TV stations are in operation. A TV translator station rebroadcasts the programs of a full-power TV broadcast station. Translator stations typically serve communities that cannot receive the signals of free over-the-air TV stations because they are too far away from a full-power TV station or because of geography (such as uneven terrain or mountains). Many of the 4,700 licensed TV translator stations operate in mountainous or more remote areas of the country.

There are several ways to determine whether the broadcast stations you view over-the-air (with a rooftop antenna or “rabbit ears” attached to your TV) are LPTV, Class A or TV translator stations. Class A stations are required to visually or aurally identify their stations with their community of license and call sign (that includes the suffix “-CA” for Class A) at sign on, sign off, and on an hourly basis. LPTV stations also must regularly identify their station call sign. When locally originating programming, they must visually or aurally identify their call sign and community of license at sign on, sign off, and hourly. LPTV call signs may consist of four letters followed by the suffix “-LP” (for low power) or, alternatively, five characters beginning with the letters K or W followed by two numbers (their operating channel) and two additional letters. Also, some TV translators are identified by the full-power TV stations whose signals they rebroadcast. Further, LPTV, Class A, and TV translator stations may regularly broadcast information as to their status, and may include information regarding the DTV transition.
While the February 17, 2009 deadline for ending analog broadcasts does not apply to low-power, Class A, and TV translator stations, the FCC will require these stations to convert to digital broadcasting some time thereafter. Nearly 2,000 of these stations have been authorized to construct digital facilities and some are broadcasting in digital already. The FCC is currently considering the remaining issues involved with the low-power digital transition and will make decisions regarding these stations in the future.

Viewers should look for information from their LPTV, Class A, and TV translator stations about plans to convert from analog to digital broadcasting. Viewers should also visit www.fcc.gov  for any updates on the digital transition of low-power, Class A, and TV translator stations.

Will I be able to use parental controls like the V-chip with digital TV the same way I now can with my analog TV?
Yes. The V-chip is a technology that enables parents to block television programming based on a program’s rating. The ratings are encoded within the television signal. The V-chip reads the encoded rating information of each program and blocks shows according to the parents’ blocking selections. FCC rules require that V-chips be built into digital televisions and other DTV reception devices just as they are in analog televisions. You can learn about the ratings system, also known as “TV Parental Guidelines,” at www.fcc.gov/vchip .

Partners

Broadcasters
• ABC
• ABCNews Now
• APTS
• Capitol Broadcasting Co., Inc.
• CBS
• Fox
• MSTV
• NAB
• NBC
• PBS
• Sinclair
• Telemundo
• Univision
Cable/DBS
• Bravo HD+
• Comcast
• Cox Communications HDTV Services
• CTAM
• DirecTV
• Discovery
• DISH Network (EchoStar)
• ESPN HD/ESPN 2 HD
• HBO
• HDNet
• INHD
• NCTA
• SBCA
• Showtime
• Starz
• Susquehanna Communications
• Time Warner Cable
• Turner/TNT
• VOOM

Manufacturers
• CEA - General DTV & HDTV Information
• CEA - Interactive Buying Guides offered in partnership with CNET
• LG Electronics
• LG Electronics - Basic Setup
• Panasonic
• Philips
• Mitsubishi
• Motorola
• Pioneer
• Pro Brand/Digital Stream
• RCA
• Samsung
• Scientific Atlanta
• Sharp Electronics
• Sony
• Zenith

Retailers
Best Buy:
• Best Buy - HDTV
• Best Buy - Home Theater
• Best Buy - DTV Advantages
• Best Buy - FAQ

Circuit City:
• Circuit City - General
• Circuit City - HDTV
• Home Theater Specialists of America
• RadioShack
• Tweeter

Other:
• CERC - General
• CERC - Consumer Guide

Federal Government Digital Television Web Sites
• National Telecommunications and Information Administration Digital TV and Public Safety
• U.S. Department of Agriculture, Rural Development Public Television Digital Transition Grant Program

TV Listings/Guides
• HDTV Magazine's HD Program Guide
• TitanTV
• Tribune Media Services

TV Guide:
• TV Guide - General

Other
• High Tech DTV Coalition

Consumer Information
• Antennas: How to choose an outdoor antenna - from AntennaWeb.org  
• CEA - General DTV & HDTV Information
• CEA - Interactive Buying Guides offered in partnership with CNET
• DTV Answers - from the National Association of Broadcasters (NAB)
• DTV Stations on the air - from the National Association of Broadcasters (NAB)
• DTV Transition: Q&A - from the Consumer Electronics Retailers Coalition (CERC)
• Finding the right TV for you - a checklist from Samsung, powered by Advizia
• HDTV: Big TVs for the big events - from ConsumerReports.org
• HDTV Primer: What you need to know to buy your first HDTV
• HDTV: Setting up your new TV - from LG Electronics
• HDTV via cable - from the National Cable & Telecommunications Association (NCTA)
• HDTV via satellite - from the Satellite Broadcasting and Communications Association (SBCA)


Glossary

Analog TV: Analog technology has been in use for the past 50 years to transmit conventional TV signals to consumers. Most current television transmissions are received through analog television sets. Analog signals vary continuously, creating fluctuations in color and brightness.

Aspect Ratio: A numerical expression of the relationship of width to height of a TV screen. 4:3: This numerical sequence refers to the aspect ratio of the National Television Systems Committee (NTSC) TV screen, with "4" unit width corresponding to "3" unit height, proportionally, regardless of the actual size of the screen. 16:9: This numerical sequence refers to the aspect ratio of wide screen DTV formats for all HDTV and some SDTV (Standard Definition) video. A "16" unit width corresponds to "9" unit height proportionally, regardless of the actual size of the screen. The widescreen 16:9 numerical sequence provides a viewing experience very similar to that of 35 mm movies.

ATSC: An acronym for Advanced Television Systems Committee, and the name of the DTV system used by broadcasters in the U.S.

Barn Doors: A term used in television production to describe the effect that occurs when a 4:3 image is viewed on a 16:9 screen. When this happens, viewers see black bars on the sides of the screen or "barn doors."
Codec: This term is short for "Coder-decoder." A codec is a device that converts analog video and audio signals into a digital format for transmission. It also converts received digital signals back into an analog format.
Compression: Compression refers to the reduction of the size of digital data files by removing redundant and/or non-critical information ("data" being the elements of video, audio and other "information"). Digital TV in the U.S. would not be possible without compression.

Computer Input: Some HDTV sets have an input like SVGA or VGA that allows the TV sets to be connected to computers.
Data casting: Also known as "enhanced TV." Data casting is the act of providing enhanced options offered with some digital programming to provide additional program material or non-program related resources. This allows viewers the ability to download data (video, audio, text, graphics, maps, services, etc.) to specially equipped computers, cache boxes, set-top boxes, or DTV receivers.

Decoder: See "codec." A device or program that translates encoded data into its original format (i.e., it decodes the data.)
Digital: Digital refers to the circuitry in which data-carrying signals are restricted to one of two voltage levels, corresponding to logic 1 or 0.

Digital Cable: A service provided by many cable providers, digital cable offers viewers more channels. Contrary to many consumers' beliefs, digital cable is not the same as High- Definition Television or digital television; rather digital cable simply offers cable subscribers the options of paying for more services. Digital Monitor: DTV monitors are televisions that can display a digital signal but lack an integrated tuner (unlike an integrated digital set), and thus cannot receive a digital broadcast signal without an additional set-top box.

Digital Monitor: DTV monitors are televisions that can display a digital signal but lack an integrated tuner (unlike an integrated digital set), and thus cannot receive a digital broadcast signal without an additional set-top box.

Digital Television (DTV): Digital TV is the umbrella term encompassing High-definition Television and several other applications, including Standard Definition Television, data casting, multicasting and interactivity.

Digital Tuner: A digital tuner serves as the decoder required to receive and display digital broadcasts. It can be included inside TV sets or via a set-top box.

Dolby Digital: This is a digital surround sound technology used in movie theaters and upscale home theater systems that enhances audio. Home theater components with this technology work in conjunction with a "5.1-speaker" system (five speakers plus a low-frequency subwoofer) to produce true-to-life audio that draws the listener into the onscreen action.

Interlaced Scanning: This process divides and presents each video frame as two fields. Imagine a video frame being divided by the odd and even horizontal lines that make up the picture. The first field presents the odd lines; the second field represents the even lines. The fields are aligned and timed so that, with a still image, the human eye blends the two fields together and sees them as one. Motion in the image makes the fields noticeable. Interlace scanning allows only half the lines to be transmitted and presented at any given moment.

Letterbox: Letterbox refers to the image of a wide-screen picture on a standard 4:3 aspect ratio television screen, typically with black bars above and below. It is used to maintain the original aspect ratio of the original source (usually a theatrical motion picture of 16:9 aspect ratio or wider).

Multicasting: The option to multicast was made possible by digital technology to allow each digital broadcast station to split its bit stream into 2, 3, 4 or more individual channels of programming and/or data services. (For example, on channel 7, you could watch 7-1, 7-2, 7-3 or 7-4.)

Must-carry: This refers to the legal obligation of cable companies to carry analog or digital signals of over-the-air local broadcasters.

NTSC: NTSC is the acronym that stands for National Television Systems Committee" and the name of the current analog transmission standard used in the U.S., which the committee created in 1953.

Pixel: Pixel is actually two words jammed together: Picture and Element. A pixel is a tiny sample of video information, the "little squares" that make up an overall picture.

Standard Definition TV Format (SDTV): There are two main digital formats - HDTV and SDTV. SDTV typically does produce better quality images than that of traditional analog TV and pictures somewhat akin to digital cable. However, its images are not nearly as sharp as the images from the ultimate form of digital television: High-definition TV (HDTV).

Set-top Converter Box: This unit sits on top of the viewer's analog TV, receives the Digital TV signal, converts it to an analog signal, and then sends that signal on to the analog TV.

Super Video Graphics Array (SVGA): This acronym is short for the "Super Video Graphics Array" display mode. SVGA resolution is 800 x 600 pixels.

Terrestrial Broadcasting: This is a broadcast signal transmitted "over-the-air" to an antenna.

Up converting: Process by which a standard definition picture is changed to a simulated high-definition picture.

Video Graphics Array (VGA): This acronym is short for the "Video Graphics Array" display mode. VGA resolution is 640 x 480 pixels.

Wide screen: A term given to picture displays with a wider aspect ratio than NTSC 4:3. Digital HDTV or SDTV is referred to as "16:9 wide screen." Most motion pictures also have a 16:9 wide screen aspect ratio. Most Digital TVs have a screen that is wider than it is tall (if a Digital TV screen is nine inches high, it's 16 inches wide.) When watching a show recorded in the wide screen format on a Digital TV, viewers see more of the movie, while when viewing wide screen format on an analog TV, cropped edges are evident.
 

*Want More?  If you would like a representative to talk to your group, please email us guilfordhills@bellsouth.net