Yeah, I don't get this reasoning. The only way a show makes money is if it has good ideas. True, sometimes a show with good ideas fails for one reason or another, but a show rarely will succeed if it doesn't have good ideas. People are spoiled now a days, and with so many things to watch, we naturally will watch only the things that entertain us. Good shows, good ideas, do this, and so they remain on the air, and, yes make lots of money. It's not ONE or the OTHER: good ideas OR make lots of money. It's one via the other.
You would be surprised that this only applies to the resulting show an no other part of the industry works this logically and coherently. Sure the good ideas make money, and the best ideas make the most money, and anyone in the industry can attest to this fact. The ironic thing is though that the entire system is set up so that good ideas are shunned, and the best ideas never see the light of day. This is because by their very nature, good ideas are unpredictable, and no matter how good they are, they always have that chance of failing for one reason or another. But you might ask "Well if there is a chance of the show being great, why not make the risk of investing in something that has a chance to fail?", and I would respond with the question "How do you think the people high enough in network television to have any influence when it comes to how to spend that kind of money got there?" (If the answer you immediately thought up was "Well, they must be there because they are the best at picking out good ideas." Then you have a very naive viewpoint by assuming we live in a country where capitalism still works.)
The point is that those people are there to pick out the ideas that make the most money. It would be convenient to assume that picking the shows that are the most entertaining are logically the best candidates, and they usually are. But there are a billion more factors regarded in making the estimation of how much money is to be made from any given show, and you can't forget that it wouldn't make as much money for the network if they only put people there to pick out the most entertaining shows rather than the most profitable.
At least that's how his reasoning sounds to me. It's not perfect reasoning, but picking something that predictably and reliably makes more money (a.k.a: a formula) is a much better bet than picking something that could very well make more money, or could make no money at all (a.k.a: an exciting, untested idea).