I had friends who weren't allowed to watch Scooby Doo because of "ghosts" and such. Even though at the end we always found out they weren't really ghosts....

My parents wouldn't for the life of me allow me to watch Sailor Moon after we went Pentecostal.

(That has long since changed.) I loved that show.
It's funny because in the Scooby Doo features they make now, the ghosts
are really lol. And Scrappy is a villain...
We weren't allowed to watch Sailor Moon after a certain point either.
I have similar stories to others: no D&D, no MTV, no Simpsons, no He-man, etc.
Also, we weren't allowed to listen to rap. While I was not forbidden other music per se, my parents discouraged it and raised me on oldies. I'm actually graetful for this because to this day I prefer the Beattles and the Moody Blues and Classical music to most anything else on the radio.
No fantasy other than Lewis and Tolkein as well as a smattering of things my folks happened to like such as the Dark Crystal and Willow. To this day, I don't understand how I was able to have Pokemon. Also, nothing about vampires whatsoever. That show Gargoyles was allowed for some reason as well.
King of the Hill
No shooting or fighting games beyond a certain level of nonrealism.