Well yes and no. This is something Fox is actually pretty famous for- the Gorilla vs. ant. Most of the time when O'Reilly, or any Fox show for that matter, has two people represent an issue or subject the decks stacked. They'll bring in some hard core bright Conservative and put them up against some fairly moderate liberal who probably isn't all that bright. Why do think think it's Hannity and Combs. Does Combs seriously strike you as being very bright? Or exactly how often does he make serious, valid points? Oh, sure he does, but only every now and then. Now how often does Hannity make valid relevant points? Think about that honestly when you watch the show next time. Hannity will slam away at issues, making valid, even great points . Combs- "we'll be right back after this break." The fix is in.
It's my guess that this is exactly why Geraldo Rivera is on Fox. Geraldo is basically a lunatic any more. He was on Leno the other night saying how Michael Jackson was being framed "and if Michaels found guilty I'm going to shave my mustache in protest." I'll bet you anything Fox's owner, Rupert Murdoch, was watching that and thinking "Yeah, that's my liberal, you just keep going nuttier" all while smiling and smoking a big fat cigar.