For anyone still confused as to what alarmingrick and Jihadin are going on about:
http://www.youtube.com/watch?v=d0aAVifJqDE
Short version: O'Reilly basically shouted down a (three star?) general, essentially telling him that Americans massacred
SS troops at Malmedy. The only problem is that it was the other way around. There was a retraction later (on his next show, is it daily or weekly?), and Fox whitewashed the transcript of the show so that it showed no record of Bill's screw-up.
The ultimate fallout of the event? Oblermann got more scraps to yap about, people who already believed O'Reilly was full of crap continue to do so, people who believed Bill knows what he's talking about pretended not to notice, and somewhere, an O'Reilly show fact checker was likely fired.
A public apology to the general would have been in order, but I don't recall hearing about that happening.
The O'Reilly Factor isn't a news show, it's a platform for a political pundit (all of whom are generally loud-mouthed fools who make a living by screaming outrageous things). So while you can use it for examples of how Fox news is biased, it's a bit like going to a strip club and being shocked that the ladies remove their clothing.
There's a plethora of examples of Fox news shenannigans without resorting to their pundits.