I think that even perfectly kosher shows and dvds are bad for children.
The problem with even kosher ones are when kids are in class, their mind is on the movie they watched.
True, children need an outlet. How about doing some arts n crafts? playing a game? drawing, painting, playing music, reading? How about saying some tehillim, or learning?
I allow my children to watch MBC and YBC. I wish I never allowed it. They would have been much better off.
I used to allow The Berentstein Bears. Bad idea. The moment my 5 yr son came home from cheder, he wanted to watch TBB. If I didn’t let, he cried. I no longer allow it, and what does he do instead? He plays lego, clicks, memory game, or we just talk. He reviews kriya even if he already reviewed it once.
Nobody on my block allows their daugthers to watch movies. All the girls are bh very well adjusted. When they get bored, they find themselves something to do. Movies dull a persons mind.