The ratings speak for themselves.
Note two things:
1) Fox News is #1 in every category
2) Fox News is #3 in household penetration (see the very bottom of the report)
Nielsen Ratings: Cable News TV Ratings for Monday, January 26, 2009
You might consider checking out the Election night ratings. Fox News got spanked by CNN.
Most people who think news think CNN. But most people don't watch cable news in prime time, either, when nothing is going on. Fox News in the news channel of news junkies, CNN is the news channel of most everyone else who doesn't constantly watch news.
Doesn't matter. The press release Scott posted says FNC is going to AT100.