The Muppet Show version of Coconut used to terrify me. I think it was the nurses with their screechy singing and increasingly bizarre appearances.
Does anyone remember a live-action TV show called Zardip's Search for Healthy Wellness? It was about an alien boy who was learning about humans. Anyway, there's one episode with a song about pain, with a cartoon showing everything that's described in the song. Both the song and the cartoon used to creep me out. I remember seeing one guy fall on the floor and his eyes turn into stars (dead?
). There's also someone who gets his hand stuck in a car door. I've been trying to find it, just to see if it would have the same effect on me now, but it doesn't seem to be anywhere online.