Which means it's about how big and passionate your fanbase is as they can watch from anywhere. The issue with the TV markets and the PAC12 schools is an apathetic fan base compared to the other P5s:

Colorado - Pro sports town. You'll see just as much, if not more Nebraska paraphernalia in Denver than Colorado gear.
Utah - Very regional, not as many viewers as #30 rank makes it out to be. And that market is split by a national program.
Arizona/Arizona State - Reasonable