What is the difference between digital, analog and HDTV?
Analog: The National Television Standards Council (NTSC) standard TV format (channel 3 output). This format is based on a video picture of 525 horizontal lines scanned from left to right across the television picture tube starting at the top of the screen (interlaced video). Digital: Digital Video Compression (DVC) allows us to compress more channels into a much smaller space than analog transmission allows. This enables us to offer higher channel capacity with excellent audio and visual quality. Many services we receive from satellite come in MPEG-2 format (Motion Picture Experts Group version 2). MPEG-2 is a video compression standard developed to take a standard analog video feed and convert it to a high speed digital data stream (several hundred million data bits per second). Computers with intelligent processing algorithms are able to compress this data stream to a much lower bit rate (3-4 million bits per second). HDTV displays sharper and wider images, like a movie screen, to de
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