Widescreen - see 16 - 9
Addressable Resolution - The highest resolution signal that a display device (television or monitor) can accept as input. Some display devices may not be capable of displaying such signals and may downconvert them to a lower resolution prior to display.
Pixel - A picture element; a single displayable video dot. HDTV requires from 1 to 2 million pixels in the display for full resolution images to be shown.
NTSC - National Television Systems Committee. The organisation that created the standards for production and broadcasting of analog color television programming in Canada and the United States. The term is widely used to mean a composite analog television signal.
Multicasting - Term given to the sharing of the digital television channel among 2, 3, 4 or more individual programs and/or data services
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.
Down Converting - Process by which a high-definition signal is converted to a standard definition picture.
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