The Simpsons are yellow because creator Matt Groening thought it was a good way to catch channel surfer’s attention when they saw a flash of yellow.
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John Swartzwelder, a writer for the Simpsons, used to write episodes while sitting in a booth at a coffee shop "drinking copious amounts of coffee and smoking endless cigarettes". When California passed an anti-smoking law, he bought the diner booth and installed it in his house.
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There was a cable network called The Puppy Channel that, for 3 years, broadcast only broadcast footage of puppies playing.
1
The first Ronald McDonald was Willard Scott in 1963.
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On April Fool’s Day, 1976, the BBC convinced many listeners that a special alignment of the planets would temporarily decrease gravity on Earth. Phone lines were flooded with callers who claimed they felt the effects.
2
In 1987, a Chicago TV station had its broadcast interrupted by a pirate signal that shows a man in a Max Headroom mask mumbling and being spanked with a fly swatter. Despite investigations by the FCC and FBI, this became the only known incident in which a hacker interrupted a major TV broadcast without getting caught.
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