I have a 4 year old niece who absolutely loves watching videos on Youtube. She sometimes spends hours just clicking on related links and never seems to tire of it. Most of what she watches are toy reviews and demonstrations, as well as clips from some of her favorite shows and also some home made versions or parodies of them. That said, I always like introducing new things to her too so she can have new topics and shows to discover, but I easily run out of these ideas, so I'm hoping you guys might offer me some suggestions on what your kids watch. I also welcome some suggestions for boys since I have a nephew as well, and also so that the thread can be more useful for all and not just me.