I'm guessing the yellow button at the upper left of the controls is a Color Sentry button.
I remember talking to the advertising people, who were asking "how fast can we say it works?" I told them it really operated much faster, and they could claim 15,000 times a second. They said "We'll just say 30 times a second so the competition isn't tempted to take us to court."
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Old TV literature, New York World's Fair, and other miscellany
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