S-video - Also called Y/C, this two-wire standard keeps the color separate from the intensity signal, and thus avoids the overlapping sideband problem of composite signals. (Converting an NTSC signal to S-video gains you nothing since what was lost cannot be recreated.) - Although the quality of S-video is close to component video, S-video cannot transport anything better than 480i.
LCD - (Liquid Crystal Display) - A common display technology. LCD is likely to replace CRTs in the smallest HDTV's.
Native format - Some DTVs will convert the 18 ATSC formats into 1 or 2 formats and will draw only those. For these sets, the `native' format is - 1. the formats the set will draw or - 2. the original format. (These are contradictory definitions, but they reflect current practice. 1 is probably the preferred meaning.)
NTSC - NTSC is the acronym that stands for National Television Systems Committee"and the name of the current analog transmission standard used in the U.S., which the committee created in 1953.
Multi-path interference - Some neighborhoods are plagued with this problem: - The signal finds more than one path to the antenna. Multi-path results from reflections off of buildings and diffraction around the sides of hills. For NTSC sets this will result in ghosts: multiple images shifted laterally. For DTVs the result can be an unusable signal, even though it may be strong. The solutions are moving the antenna or selecting a very directional antenna. Newer generations of DTV receivers are better able to cope with multi-path.
Must-carry - This refers to the legal obligation of cable companies to carry analog or digital signals of over-the-air local broadcasters.
Pan-and-scan - A method of broadcasting a wide screen film on a 4:3 channel. Most of the time just the center of the image is shown. (The right and left edges are clipped off.)
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