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High Definition Television. High-resolution digital television combined with Dolby Digital Surround Sound

High-definition television (or HDTV, or just HD) refers to video having resolution substantially higher than traditional television systems (standard-definition TV, or SDTV, or SD). HD has one or two million pixels per frame, roughly five times that of SD. Early HDTV broadcasting used analog techniques, but today HDTV is digitally broadcast using video compression.

[edit] Also see

[edit] Reference;

  1. Wikipedia High-definition television [1]

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