The Digital TV Revolution February-17 2009
What Is 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.
http://www.dtv.gov/whatisdtv.html
http://www.fcc.gov/
http://www.pearsonhighered.com/samplechapter/0130173606.pdf
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