Saturday at 8 p.m. Fox News host Bill O’Reilly and “Daily Show” host Jon Stewart will argue over the state of the union before a live audience at the George Washington University’s Lisner Auditorium. The debate spectacle is titled “The Rumble in the Air-Conditioned Auditorium” and will be live-streamed online for $4.95. Not keen on paying? Going to be out and about? Couldn’t get a ticket?