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Glossary
Color television
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The early stages of color television experimentation in America overlap the technological development of
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television. Color television was demonstrated by John Baird as early
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1928, and a year later by Bell Telephone Laboratories. Experimental color broadcasting was
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in 1940, when the Columbia Broadcasting System (CBS) publicly demonstrated a field sequential color television broadcasting system. This system employed successive fields scanned one
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in one of the three primary colors; red, blue, or green. On the receiver end, a mechanical color wheel was used to reconstitute the
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colors in sequence to enable reproduction of the colors in the original scene. In their 1941 report confirming the National Television Systems Committee (NTSC) monochromatic standards, the Federal Communications Commission (FCC) noted the potential
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the CBS color system but concurred with the NTSC assessment that color television required
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testing before it could be standardized.
Further refinement of color television was temporarily suspended during World War II. After the war, work on the development of color TV resumed, and engineers were able
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a system that would operate within the 6 MHz channel allocation that had been established for black and white service. CBS petitioned the FCC for commercialization of their 6 MHz, 405
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, 144 fields per second field sequential color system. Due to the higher scanning rate, such a system was not compatible with the existing monochromatic standard.
As late as 1965, CBS provided only 800
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of color programming the entire year and ABC only 600 hours. As of 1965, only
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of U.S. homes had a color set. It was not until the late 1960s, over a decade after the standard
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set, that color TV sales rose significantly. Today, approximately 95% of all US
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