Fox News: Full-time Bush Ad?

The thought just crossed my mind tonight when I heard that the Repugs had filed a lawsuit with the FEC to get rid of MoveOn. I don't know the details, but I can't imagine that Fox News shows aren't breaking the spirit, if not the letter, of the FEC rules/laws concerning political advertising. Is 'advertising' a short, 30-second piece, by defnition? Or, can it be a slightly more subtle 1-hour piece?

Just a thought...