What is High Definition Television?
Digital television will allow us to broadcast programs at an extremely higher resolution and clarity than today’s television. This is called high definition television, or HDTV. Viewers will be able to receive crystal clear, sharp images in a wide-screen format with surround-sound quality audio. The visually stunning pictures displayed on the wider screen (16 by 9 aspect ratio vs. the current square box of 3 or 4 aspect ratio) and CD-quality sound of HDTV create a true home theater experience. HDTV requires the entire DTV channel space, so only one program at a time can be transmitted.
See related Item:
http://electronics.howstuffworks.com/hdtv1.htm
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