Everyone is bashing lowbrow TV right now, and I'd like to stick up for it for a second.
First I wanna say, yeah, it's really sad, but people sign themselves up for this kind of stuff. It's not really exploitation, it's people trying to get their 15 minutes of fame. The only people who lose is the TV audience because there is nothing better on. And I and 100% against shows like The Swan and Extreme Makeover where they change people's image... THAT is exploiting people with low self-esteem and making changes that can't be reserved. It's just sick.
But Survivor? Survivor actually takes some sort of skill. Yeah, you do get creepers on there and it is seeing people at their worst, so it's full of inappropriate behaviour and extremes. But these people fully knew what they were getting into, and at the end, it's all a GAME, which is much different that something like The Biggest Loser, which is about your actual life.
As for lowbrow (and I spelling that right?) stuff like Grey's Anatomy and South Park and Family Guy, or whatever, it all depends on the person. I LOVE the Muppets, and Harry Potter, and a bunch of other stuff that could be descibed as family/wholesome entertainment, but I love Grey's and I LOVE Family Guy! I don't approve of the bed-hopping and breaking up of marriages in Grey's (It was better before Issy and George hooked up, I don't like that storyline at all), and Family Guy sometimes crosses the line of what is appropriate and what isn't. But it's much different than reality tv show stuff, and I think pushing the line is quite necessary sometimes, because it reminds everyone else where they stand.