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.)
S-Video Connection - A method to interconnect video devices (such as a DVD player and the analog television) by sending the two signals luminance (Y) and an encoded color difference signal (C). The S-Video connection is made using a cable terminated in a small 4-pin connector (in some cases a 7 pin connector is used on computers to allow inclusion of an NTSC composite signal). S-video can greatly improve the picture when connecting SDTV or NTSC displays to a high quality video source such as DVDs.
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.
AC-3 - (see Dolby Digital 5.1)
EDTV - (enhanced definition TV) - Essentially DVD quality, it is a small step up from NTSC. An EDTV will convert all 18 ATSC formats to 480p.
HD-Capable TV - A standard definition set with a digital tuner. (This term was probably invented to confuse people.)
OTA - (over the air) - There are about 1500 OTA (terrestrial) TV stations in the U.S.
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