If the PAC-12 wanted to syndicate their games to OTA stations, they would have. They didn't, and probably won't.
RIght now, at least in Phoenix, if you want the PAC-12 network, you must be a Cox subsriber. Don't hold your breath waiting for the "birds" to work out a deal.
I'm not enough of a footballaholic that I would subscribe to cable or sat just to get the P12 Network. I might consider subscribing to an OTA version if their prices were reasonable. Until then I will take whatever they want to show OTA or I'll get the games on *ahem* other services.