Are reality show contests ever rigged?

Are reality show contests ever rigged?

It is against the law to defraud the American public and so it is against the law to present a contest to the American public and say that it is real when it is not, in the same way that it is illegal to tell someone that your little pill cures cancer. It is illegal to say a person answered this question correctly and they really didn't, or this person just won over all these other contestants because they were the smartest one, when really they were the ones that were being coached. All of that is illegal; it is fraud. In the entertainment business, when you are saying to the reality show audience, "This is a real contest and it is a fair contest and the winner won on skill and knowledge" they really better have done that, or else they could be sued or prosecuted.