Exclusive: Cox Cutting Joe Heck's Commercials

I was watching "Top Chef- Just Desserts" and Cox put a commercial on for Joe Heck. Well, less than 2 seconds worth at about 4:40 PM. The commercial mention Joe Heck's name and then cut to a commercial for New Jersey Housewives or some show like that.
So, why did Cox cut Joe Heck's commercials and are they doing it at other times and other channels. It should be noted that Bravo is an ultra liberal television station, but probably had no say in local commercials.
Just wondering.