Samsung HLT5675SX-XAA User Manual Page 2

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© 2007 Samsung Electronics Co., Ltd. All rights reserved.
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. 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 480-line interlaced (480i) and 480-line progressive (480p) video. 480i programs are essentially a digital
version of our current analog TV programs, while the 480p format offers improved image detail over 480i. Some 480p programs are
broadcast in widescreen and are comparable to progressive-scan DVD movies in image quality.
HDTV program formats include 1080-line interlaced (1080i) and 720-line progressive (720p). Both HDTV formats are always broadcast
in widescreen, and offer much higher picture quality than SDTV.
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 DD 5.1 soundtracks.
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