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A Guide to Digital TV
What is Digital Television?
Digital television (DTV) is a new way of transmitting high quality video and audio to your TV set. Using DTV, broadcasters can transmit high definition TV (HDTV) images, Dolby Digital surround audio, and new services such as multicasting (transmitting more than one program on the same TV channel) and datacasting (providing electronic program guides and interactive television). Several of these services can be combined into a single digital broadcast.
Digital Television Services
Digital Picture Quality
DTV programs are transmitted in two different formats. The first is Standard Definition Television (SDTV) and the second is High Definition Television (HDTV).
SDTV program formats include
HDTV program formats include
Dolby Surround Sound
With DTV, you can listen to a variety of Dolby Digital audio formats from Dolby Surround 2.0 to Dolby Digital 5.1 surround, using your home audio system. Many HDTV programs are now broadcast with Dolby Digital 5.1 soundtracks.
Interactive Communications and Datacasting
DTV will allow you to interact with your television; choosing programs from a detailed program guide, ordering products