network's original plan to shift the latter program later by a half-hour to make room for Leno that led O'Brien to negotiate an exit from his Tonight contract). Of the major networks, NBC, ABC and CBS program the late night slot on weekdays, but only NBC carries first-run entertainment shows in that time period on Saturdays; none of the major networks air first-run late night shows on Sundays. (NBC does offer its affiliates a same-day repeat of its political talk show Meet the Press on Sunday nights—which, like its weeknight rebroadcast of the fourth hour of Today and its Saturday overnight block of lifestyle programs produced by sister company LXTV, are not cleared by the network's owned-and-operated stations.) Fox carried first-run late night programming on weeknights off-and-on from 1986 to 1993 and on Saturdays from 1989 to 2010; however since the cancellation of The Wanda Sykes Show, no longer airs traditional late night programs on any day of the week (a six-week test run of a daily talk show hosted by Craig Kilborn failed to be picked up by the network, and the 90-minute Saturday late night block previously occupied by Sykes and before that by MADtv consisted only of reruns of Fox primetime programming until July 2013, when it added a block of Animation Domination High-Def that was subsequently canceled in 2014 due to sports overruns and remains on the network merely as reruns). Until the early 1990s, syndicated late night talk shows were fairly common, due to NBC having the only network shows in that slot at the time. The Arsenio Hall Show, which originally ran from 1988 to 1994, was able to pick from CBS, ABC or Fox affiliates (the affiliate makeup of the short-lived revival that aired from 2013 to 2014 consisted of Fox, CW and MyNetworkTV stations). When Late Show with David Letterman and The Chevy Chase Show debuted in 1993, Hall lost a large number of affiliates and ended up leaving the air at the end of the season. There has not been a successful syndicated late night talk show since that time. Typical format These shows often follow the same canonical format: a stand-up comedy segment, called the monologue in which the host makes news satire; several sketch comedy, sketches, or other comedy bits; interviews with one or two celebrity guests; a music guest or stand-up comedy. There have been deviations from this