We determine how long each segment will be based on the amount of commercials that we need to air each night. Bill is told how long each segment should be, and the director in the control room warns him when time is running out for each segment.

The show is timed so that we can provide as much information as possible, so we never plan for credits to be included. Additionally, and more importantly, it's a Fox News Channel policy that programs not run credits for its programs. This has to do with privacy and security issues.

Bill tapes his "backstage conversations" in the radio studio that the Radio Factor is broadcast from in the Fox News building just after he wraps up radio for the day.

The show's staff, including the engineers, come up with the ideas for the bumpers. The engineer creates them and Bill ultimately approves (or sometimes rejects) them.

Bill does. Twice a week we hold "pitch meetings" where our producers suggest stories to be featured on the show; Bill decides which stories to accept, as well as when we will feature them.

Every staffer at Fox News uses a special newsroom computer system that allows us to rapidly share information with each other. Bill writes the show directly into this application; the computer program also specifies to the director when certain graphics should be displayed, and the text also appears directly on the studio teleprompters.

Bill doesn't select his own fill-in hosts; this is entirely the decision of other individuals. For instance, the executives at the Fox News Channel make the decision as to who will fill in for Bill on television if he is away, while the executive producer of the Radio Factor in conjunction with Westwood One executives decide who will fill in on the Radio Factor.

There are certain guests who are barred from appearing on the Factor for various reasons, but there is no official "list" of these individuals.

Each segment of The O'Reilly Factor is assigned to an individual Factor producer, who will research the story thoroughly, double- and triple-check the facts, and, if appropriate, book a guest or two. Bill receives these "packets" of information several hours prior to the program. He studies them carefully, asks for any follow-up if necessary, and writes his own introduction to each segment and then develops a list of questions that he plans to ask our guests. No one except Bill writes anything that he says on air.

Because the program is recorded "live to tape," meaning that we break for commercials exactly as if the show was live on the air, we're under tremendous time constraints. Most guests respect that, and while Bill will usually thank guests during the commercials, it's not typical for arguments to continue more than a few moments into the commercials.

The Fox News Channel graphics department handles all of the graphics, animated and otherwise, that you see on television. The producers of the program work with the graphics department to create and then modify the graphics that you see on the air each night.

The O'Reilly Factor studio is set up as a standard three-camera studio. The camera that is on Bill is manned by a camera operator in the studio, but the other two cameras--the guest camera, and the "two shot" of both Bill and the guest--are robotically controlled. The robotic camera operator sits in the control room with the director and producers.

When the O'Reilly Factor is broadcast from a city other than New York, Bill is usually accompanied by his assistant and one or more producers from his New York staff. He usually relies on the technical staff from the studio or station that provides the facilities.

The O'Reilly Factor is not filmed in front of a studio audience; only the crew is present in the studio when the program is filmed. From time to time, the Radio Factor is live on location. These events are announced in advance and tickets, if available, are distributed through the venue.

Fox receives new suits from time to time from the designer listed at the end of the program. While there isn't a new suit every single night, there are enough so that Bill can wear something different for every show.

Each show has its own set of producers, as putting together one television show a day is a full-time job. Every show has one to two executive producers, responsible for overseeing the production of the show each day, and anywhere from six to two dozen associate producers, who book guests, pitch stories and more.

Some producers do work on more than one show, however, mainly shows that have a weekday and a weekend edition.

On a typical news day, Bill receives roughly 4,000 emails at his oreilly@foxnews.com email address. These are sorted and printed for Bill several times a day, and as he has mentioned before, he personally reads through these messages and decides which ones to read on the air, or to respond to.

Every morning, Bill receives copies of all of the emails received the day before. Bill reads through the messages, sorts them, and as he writes the show between 3 and 4 PM, he will decide which messages will be read on the air. The decision is ultimately Bill's; he generally selects messages that are short and pithy, and he also likes well-supported opinions that may challenge his own position.

Most nights, the Factor is taped in advance in our New York studio, usually between 5 and 7pm EST. However, sometimes Bill has other commitments or is unavailable at that time; in those instances, the program may be taped earlier or later, or it may just be broadcasted live at 8pm EST, and recorded and played back later. The show is also done live if there is breaking news. Generally, the show is done live to tape--meaning there are no interruptions other than times where the commercials will run. There is no editing, so what is seen on TV is what was taped.

From time to time if Bill is on assignment or has an out-of-town obligation, he will do the O'Reilly Factor in a studio elsewhere in the country.

When guests appear on The O'Reilly Factor via satellite, Bill will see the guest on a monitor adjacent to the camera. Both Bill and his guest will both be wearing something called an IFB, which is an in-ear communication device that allows them to hear each other. From the control room, the director and the producers are also able to speak to either Bill or his guest through their IFB's.

Usually the guests do not see a live picture of Bill--they can only hear him on their IFB device. In some cases, however, the producers can order "return video," which allows the guest to see Bill and/or any other guests appearing on the program at the same time.

Guests who appear via satellite often sit for their interviews at local Fox news affiliates, or they may be broadcast from Fox News Channel bureaus in major cities around the country.

There are up to 12 people working on the television program and two on the editorial staff of the radio show. The stories are proposed by individual members of the staff during regular meetings with Bill, and once a story is approved that person is responsible for the research and for booking the guests. Bill has complete editorial control of both the radio and TV programs, so final decisions on which stories will be covered are his.

There are many other people involved each day in making sure that the shows come off flawlessly, including technical staff in the studio and the control rooms, individuals who work in particular departments (for example, graphics, sound, makeup, and so forth), and these can vary from night to night.

Fox News management decides Bill's fill-in host when he's away on vacation or out on assignment. Bill's schedule is usually set in advance, so they usually know who's available and appropriate for the show.

Past fill in hosts have included John Gibson, John Kasich and Judge Andrew Napolitano.

For the Radio Factor, Bill's Executive Producer usually decides who will host the show that morning and then works with the guest host to make sure that Bill's audience is served with the same No-Spin ethic like Bill's, although sometimes the guest host comes in with a specific range of topics and newsworthy events they would like to cover.

At times Bill is talking to the technical and behind the scenes people who are telling him how many seconds it is before the "Hannity and Colmes" program begins, or other similar information counting down to the end of the show.

Immediately after the end of the show, he scribbles a large check mark over the cover of the show's script to mark that the show is over and that it's ready to be archived. He also might write a series of quick notes to himself about things from the show that just concluded, including ideas for future or follow-up segments.