YouTube Kids' mobile app is fine if your young ones are content to watch videos on a tablet, but what if you just want to plunk them down on the couch to watch on the big screen? You can after today. YouTube is trotting out a version of the Kids app for many LG, Samsung and Sony smart TVs (more details below) in all 26 countries where the child-ready viewer is available. The interface isn't exactly a radical departure, but that's the point, isn't it? Ideally, this lets little tykes watch videos with minimal help from their parents.