Format
The O'Reilly Factor is usually prerecorded, though it is occasionally aired live if breaking news or special events are being covered. It is usually taped between 5:00 and 7:00 PM Eastern Time and airs weekdays at 8:00 PM and 11:00 PM. Some guests are interviewed before the "live to tape" period and are slotted in the program as appropriate.
O'Reilly and his producers discuss potential topics twice a week. For each show, O'Reilly, with the assistance of his staff, will produce a script with the words for the "Talking Points Memo" and "Pinheads and Patriots" segments, and points of discussion and questions for the guests that will appear on the program. On February 2, 2009 the show launched in high definition and moved to the previous studio used by the Fox Report.
Radio talk show host Laura Ingraham is the current regular guest host, though Mike Huckabee, Juan Williams, Monica Crowley, Eric Bolling, and Greg Gutfeld have also filled in.
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