I used to believe that 'canned' laughter (from sitcom tracks and the like) actually came from a can- that you opened a giant tuna can with speakers inside, and you could hear the audience laughing in front of their TVs. This was waaaaay past the era of sitcoms... and I believed it until about 3 years ago. ::BLUSH::
A childhood belief about tv shows

others believed things like this
- I used to think that the laugh track on sitcoms were the camera men, directors, other actors, ect. laughing.Anon
- For years and years I believed that tuna must be really little fish because they came in such small cans!!— Gisela
- I used to believe that if you spoke into the speakers that they would hear it at the radio station. — natalie
- I believed until I was 18 that if I got tuna in the mayonaise jar, I would die the next time I ate it. — Sue
- MY SISTER TOLD ME THAT CANNED SPAGHETTI WERE REALLY WORMS THAT'S WHY THEY WERE SO CHEAP...I BELIEVED— CATHY
- I used to think that you could get a tan if you turned the oven on, opened the door and stood in front of it.Anon