Wouldn't go as far as to say it "traumatised" me but In the Night Garden was a surreal, creepy fever dream of a show that still lives rent free in my head. The thing kid me found most weird was that I first saw it in Canada, but when we went back to China to visit family they were airing it there too in the imported shows segment right next to Spongebob and Doraemon. At that point I was really confused because I assumed for a show to be imported it would have to be really well written and acclaimed, but In the Night Garden was such a nonsensical cacophony that it left me wondering what it is about it my stupid kid brain had missed. Still don't know what was up with that show.

The show that really did traumatise me though was this ghost hunting show on Animal Planet about people's pets acting weird because they were "detecting" ghosts in their home. Freaked me the hell out because I assumed anything that aired on a documentary channel was real, and the fact that they involved animals in their "justification" of why the place is haunted added to the realism for me at the time. Took until I was an adult to realize that ghost hunting shows are all fake. This was right at the start of documentary channels deciding to sell out to pseudoscience bullshit AFAIK, so they still had a significant air of authority especially for kids.