Well, to be honest, I say that all the time and I'm not alone in doing so.
But the difference is that conservatives have not brought pressures upon NBC or anyone else to force Keith Olbermann off the air for those games. Whereas in the case of Rush, liberal forces were brought to bear which resulted in Rush being declared unfit to own an NFL team.
I think we all know that liberals will complain about conservatives, and vice versa. But in the Rush case, we see the liberals using their power to force him away from the NFL. Have conservatives ever used such force to get rid of a liberal from a prominent position? Maybe they have but I sure can’t think of anything like this happening to a liberal.