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The Advantages:
Clearer Signal - if there was snow or static in your previous picture, digital TV could make it crystal clear.
EPG - Electronic Program Guide - have the TV guide right on your screen in seconds.
More channels - stations have the ability to host more than one channel.
Better Sound - Dolby 5.1 - Surround Sound - great for the movies.
Better Resolution - Digital transmission has enabled high definition broadcasts. Although digital does not mean high definition, nearly all new shows are recorded in 1080i - 1920 x 1080, rather than the 567i (720 x 576) in Europe or 480i (640 x 576) in North America. There is a steady progression towards HD so increasingly, HD content will be available.
The Disadvantages:
If you live in an area with low signal - you won't just get static or 'snow' - your TV will just sit there displaying digital artifacts, squares, etc.
You also have to buy a 'Digital Set Top Box' which picks up the signal and decodes it back into a picture (if your TV does not have one in-built).
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