I don't think they do with Survivor, the dramas and dynamics happen naturally when people are hungry and cold and can't really trust anyone fully. On BB, and shows like it, yeah, they have to create the drama's or they'll all just sit around and sing kumbaya. Survivor is very different because you cannot predict human nature under these conditions. It may not go the way they expected, but do you really think they can't spin it into a show anyway after the fact? This isn't a live show, they get to edit it the way they want to, but, I've never thought they've changed things up in order to make it end like they would like it to. I haven't liked a lot of the past winners, some of which most people haven't, how is that good ratings?