O'Reilly named MediaMatters.org's 2004 Misinformer of the Year
I really recommend taking a look at the list. This list represents only a small, small fragment of the duplicity that is the O'Reilly Factor. My favorite item on the list is #6, entitled "O'Reilly confused on elementary economics". How embarrassing it must be to completely misunderstand and argue about an issue like that on national television....or, at least it would be if we actually have a liberal media ready to call him on it.
My personal favorite story about Bill O'liely is the infamous Jeremy Glick incident. If you haven't heard of the incident, Jeremy Glick was the son of a 9/11 victim. O'Reilly invited him on the show after hearing that Glick had signed an anti-war petition. I won't go into the full details of the story, since you can find it all over the web. The story is really rather amazing...For me, it was the single worst disgraceful action I have ever seen on the part of a television interviewer. O'Reilly started yelling at his guest, and telling him to shut up. Eventually, he had Glick's microphone cut off and purportedly, the staff of the O'Reilly Factor asked Glick to leave the building because they feared the O'Reilly would physically assault the man. In the days and weeks following the interview, O'Reilly repeatedly slandered his guest, and lied about what Glick stated during the interview.
If you are interested in reading more about the story, I recommend checking out these sources:
Here is the full transcript of the interview.
The movie, outfoxed: Rupert Murdoch's War on Journalism covers the story in detail.
Al Franken's book, Lies and the Lying Liars Who Tell Them, also has a section on the story. Al actually has an entire chapter of his book dedicated to the lies of Bill O'Reilly.