Travel Back In Time And Name These Objects From The 1970s!
Before 24-hour TV, stations signed off with color bars and what?

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TV Test Patterns and color bars were how TV stations ended a day of broadcasting. As inconceivable as it sounds, stations did not stay on the air all day.
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Before 24-hour TV, stations signed off with color bars and what?
- Sirens
- Trumpets
- TV Test Patterns
- The U.S. National Anthem
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