BOR does say there is media bias, or at least he and Bernie Goldberg have that discussion about once a week! Now BOR is pushing Romney, hard. Makes one sick.
Took the man way to long to get there. If, as you say, O’Reilly is pushing Romney then it’s obvious O’Reilly is first and formost a RINO. By extention, then, he’s a stealth demrat tool.
I suspect he gave up his no media bias charade when it became impossible to deny.