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.
3D TV, Internet@TV, Viewsonic TV, Vizio TV, Haier TV, LG HDTV, Samsung 3D TV Samsung TV, Panasonic Viera, Sharp Aquos, Sony Bravia, Toshiba Regza
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