I quit watching network television except for football several years ago. The "family hour" was actually a network idea, in which they promised to leave the more explicit material until later in the evening. It was, at the time, a way to get more leeway in showing more explicit fare. Prior to the implementation of the family hour, pretty much everything on network television could be safely seen by minors, although they'd find some of it boring. Shows like NYPD Blue felt that it was impossible to make a creative television show without having Dennis Franz get naked, and the family hour was the bone they tossed to the FCC to get it.
Previously, the idea was, if you want to look at dirty stuff, do it in private, and keep it away from the kids. Today, the idea is, we're going to do anything we want, anywhere we want, anytime we want. Keep your kids away from it. We're paying the price as a culture, too.
My elementary school principle took early retirement, and I asked him why. He said, "these aren't the same kind of kids you were. I didn't sign up to deal with attempted rapes in the bathroom of the elementary school by fourth graders."