HDTV or HD-Ready
During the course of shopping for a digital television, the labels HDTV and HD-Ready maybe of some confusion to the consumer. This HDTV designation signifies that the set has an internal ATSC tuner/decoder, as well as meeting the widescreen specifications often required to be considered a true HDTV. The sets will meet the requirement to display in 1080i/720p, although it is often the former only. Very few digital TVs on the market will display in native 720p. The lack of an ATSC tuner/decoder is not necessarily a negative as many set-top decoders are now available with more features than those included in the integrated HDTV. The separate purchase of a HD-Ready TV and the external set-top-box often provides flexibility to the consumer to choose one that offers added features such as satellite receiver and the proper output signal. Most HD-Ready sets will include a high-band component (Y-Pb-Pr) DTV input, although few on the market also offers RGB for this purpose. There have been much debate between manufacturers as to the aspect ratio specifications of the HDTV designation, and it is now recognized that a true HD set will provide widescreen 16:9 aspect screen.