What is the difference between Digital and Analog TV?
An analog television picture is “drawn” on the screen an entire frame at a time, similar to the way a motion picture film is a series of still images displayed in rapid succession. Analog television exploits the properties of the human eye to create the illusion of a moving image, or “persistence of vision.” Due to this effect, a rapid sequence of images will be perceived as an integrated moving image. Digital television, however, is actually a compressed signal that is sent and must be decoded by a special mechanism before it can be displayed on your television.
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