Google didn't create Google TV out of the kindness of their heart. Google created Google TV to make a profit. Just like you see ads on top of Youtube videos, you see ads on top of and around television using Google TV.

So the more popular a television show, the more ads Google gets to show around it, and the more money Google makes. How much of that money gets shared with the networks that actually paid for television show and the costs of distribution? None. And that's the problem. The networks are putting up all the money and Google collects when it pays off.