What is digital TV and why do we need it anyway? Digital signals carry much more information than analogy signals and, because digital signals do not travel through the air the same way that analog signals do, there is no interference with a digital signal. Picture and sound quality is far superior, and in fact it is largely the development of digital picture and sound technology that has enabled home theater to become possible. HDTV or High Definition Television came about because of the capacity that a digital signal has for carrying complex and huge amounts of information—information that allows you to reproduce theater quality sound and images in your own living room. 

If you own a High Definition Television you probably already know that it doesn’t receive an analog signal very well, but why would you want it to? In order to receive HDTV you do need a special HDTV set—you can’t get HDTV on an ordinary analog set. Although the technology is being phased in slowly, expect to see not much else besides HDTV within the next few years.

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