We tried the timer, but it wasn't so good for a program to suddenly cut off in the middle. I know I wouldn't be happy either if something I was into watching would just suddenly end. Now we let our kid watch about half an hour of YouTube a day, but try to let him stop at a natural place, such as the end of the video.

The only thing I really want is for foreign language videos not to appear in the list of suggested videos. Sometimes he gets trapped happily watching videos in Russian.