well, these shows are some what fixed anyway I would say. The producers encourage players to vote certain ways. It's all about ratings. And it's not hard to figure out who is going to get voted out tonight.
I really don't think so. There's prize money involved and as such there are rules. In this specific case, like you said, it' s a no brainer. They know how people are going to vote cause they hear and watch them 24/7. But I don't think they're fixed