There was a legend in the neighborhood that if actors were in a wedding in a TV show, that meant that they really got married... unless they didn't kiss. A wedding doesn't count if you don't kiss, and it was alleged, quite falsely, that "you never see people in TV weddings kiss, so that it won't count."
I have to admit that I didn't actually believe this myself. There seemed to be something fishy about it. But I did think it might be exchanging rings that was what made it REALLY count...
A childhood belief about marriage

others believed things like this
- I thought that Count Dracula was the count from Sesame StreetAnon
- I used to think people didnt actually kiss on tv,i thought that the computer just made it look that way.— deanna
- I used to believe that it would take forever to count to 100— Jeff
- when i was in kindergarten i used to think that 100 was the highest someone could count!— Jessica
- I thought to count to one thousand you did 1-100, then 100-199, then came 1,000.— Anon!
- I used to believe there was a limit on the numbers you could count — Carmen