I watch a lot of fox because of my dad, so I know for a fact that they offer both sides because they invite people on for both sides of the spectrum.
Yes because no other news organization has bee duped by morons. If I remember correctly, when that stupid Aqua Teen Hunger Force movie came out or whatever, all the news organizations were saying there were bombs all over NYC because of people hanging up the stupid little signs for the movie or something. This was a few years back so I can't remember the specifics, other than it was really really stupid.
And O'Reily is not part of a the "News" broadcast. It is on at 8pm and is called an "Opinion" show. He may talk about what is going on in the news but it is still considered an opinion show.