The picture that you currently receive on your television set is based on an analog transmission system that is 50 years old.
Television is about to change from analog to digital broadcasting.
In a digital system, images and sounds are captured and transmitted using the digital code found in computers as zeroes and ones. Many communications already are being transmitted digitally - computers, audio, movies, photographs, print, telephone, etc. Viewers at home will therefore be able to receive high quality, crystal clear pictures. In other word, you will be able to enjoy a true home theater experience. SDTV offers a higher quality picture than we have today, along with stereo sound.