Once, a long time ago, when flipping through channels, I caught a bit of the show but had to switch quickly because I felt so sorry for one of the little girls. It was their first visit to the dentist and she (the little girl) was having a fullblown temper tantrum. The camera just kept focusing in closer and closer as it went on. I don't think that was a healthy situation to put that little child through. There has to be some kind of boundary line where the parent can say "Stop filming, please."
Just my opinion!