The O'Reilly Factor
Host Bill O'Reilly
Network [[ ]]
Premiere October 7, 1996
Running Time 60 minutes
Time Slot 8:00PM (Eastern)

The O'Reilly Factor is the highest rated news show on cable television. The show has run on the FOX News network since its debut in 1996. Until 1998, it was titled The O'Reilly Report.

Greg Gutfeld has appeared regularly in the weekly Dumbest Thing of the Week segment, which focuses on bizarre news stories. Andy Levy took part in the Great American Culture Quiz (filling in for Steve Doocy), beating Martha McCallum.

Gutfeld has guest-hosted The O'Reilly Factor several times, the first being on December 27, 2011.