I grew up in Wimbledon, home of The Wombles (a kids TV show about environmentally friendly creatures called Wombles who lived on Wimbledon Common). My mum used to take me to Wimbledon Common to look for Wombles. Being smart, I "knew" we weren't going to find walking talking Wombles. I had "figured out" they were just regular animals like squirrels. I was well into my teens when I said to her "It's a shame we never found a real Womble in the park" and she cracked up and informed me there was no such thing. I was so disappointed.
A childhood belief about tv shows

others believed things like this
- "The wombles of Wimbledon Common are we" meant that there were loads of them...— Mike
- I used to believe there were loads of Wombles, until about a minute ago...— Nat
- It was common "knowledge" where I lived that if you picked dandelions then you would wet the bed.— Holly
- I thought common as muck was a substance called commoners muck— oddsox
- I used to beleive that the computer bugs were real creatures that lived in your pc and ate away at it.— BoBo
- A common misheard lyric in BMTH’s ‘Shadow Moses’ is “THIS IS SANDPIT TURTLE!”— Oli