CBS-Columbia, Inc.set did not suffer such blackouts -- it was designed and built with a manual switching system that drove it (Model 12CC2) into standard NTSC black-and-white mode if color wasn't being broadcast, which was virtually all the time.
The Set: Pete Deksnis's Site about the CT-100
Restoring a Vintage Color Television Set
The third paragraph of the text notes: "This amazing dual receiver enables you to enjoy not only
color televisionbut your favorite black and white programs as well, with the flick of a switch."
Two years later, after compatible color television was launched, all color sets switched between color and b&w automatically.
Only two of these sets survived.
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Very few consumers bought these sets.
By the end of 1951 the sets were bought back
by the manufacturer and destroyed. One remains
in the Smithsonian and another in a California museum.
[Created Sunday June 24, 2001]