I remember my mother explaining to other JWs that she had done "research" into the Smurfs and discovered that they were of 'demonic origin' or something like that. My older sister loved the smurfs and had a collection of the little figurines, which she had to throw away once my mother made her 'discovery.' It was like a competition sometimes, to see who could find more demons in their homes so that they could tell everyone how they exorcised them.
The thing is, my mother was like many parents, who used the TV as a way to keep the kids out of her hair. So we grew up watching everything, including Scooby-Doo and Casper cartoons. As long as we weren't annoying her, there wasn't much we couldn't watch during the early afternoon.