We had this last year when DS (then 10) was in 5th grade. Ever since, when I suggest he might not need to see/know something, he says "I've seen THE VIDEO!"
This was not the high-powered version, though, but rather a lesson in bodily changes and an introduction to the opposite sex's parts and what they are all about. (I didn't actually see THE VIDEO myself.)
When I was a kid, I got everything I knew from "Are You There, God, It's Me, Margaret" until 8th grade when we got THE VIDEO which was only about the girl stuff. It was about two weeks later when it became relevant for me.
