FOX Says It'll Leave Network TV If Aereo's Streaming Service Survives
The real issue is that Aereo doesn't pay transmission fees to the networks; it just takes content that's already being transmitted, and then funnels it over the Internet. FOX's COO Chase Carey has come out swinging, stating that his network would consider going off of the network air (and instead broadcasting as a pay-TV cable channel like ESPN) if Aereo's services end up being okayed by the courts.
Of course, that decision is a long ways from being made, but it's a curious thing to come out and say. It's also highly unlikely that he's being truthful. Due to free access via antennas, network channels receive millions more viewers than your average cable channel. Changing that access would have huge impact on FOX's advertisers, and they'd be none too pleased to hear that it lost millions of viewers due to a squabbel with an Internet start-up company.