Factor this... "The O'Reilly Factor" is pre-empted tonight so that Fox News Channel can bring you the The Democratic Presidential Candidates Debate at 8 p.m. ET live from New Hampshire. 

The event marks the final face-off between all seven candidates before the New Hampshire Primary. After Senator John Kerry's win at the Iowa Caucuses on Monday some analysts predict that tonight's event could be the most important debate of the 2004 Democratic presidential campaign.

The debate will be moderated by Fox News Washington Managing Editor Brit Hume. He will be joined by ABC News' Anchor Peter Jennings (search), WMUR-TV (search) news anchor Tom Griffith and a representative from the Manchester, New Hampshire newspaper "The Union Leader." (search) Post debate analysis on Fox News Channel will be anchored by the host of "Fox News Sunday," Chris Wallace.

Finally, don't worry, Bill O'Reilly and the No Spin Zone will be back tomorrow night, Friday, January 23 at 8 p.m. and 11 p.m. ET!