When I was little, I thought that the "viewer discretion is advised" warnings before television programs meant that you weren't supposed to talk about what you saw.
A childhood belief about tv

others believed things like this
- I used to think the word "european" had something to do with pee, and that kids weren't supposed to say it.Anon
- I thought cartoons were for kids and "real-life programs" for adults.— Ichigo
- I used to think that "No standing signs" meant that you weren't allowed to actually stand in the area!Anon
- I used to believe that I could jump through the television and be where the people were on television.— Ash
- I used to beleive when ppl didn't talk (deaf ppl) they lost their voice and could never talk again!— Tiara 10
- When I was about 4, I thought catfish were supposed to meow. — Élistariel