These are the late night schedules for the four United States broadcast networks that offer programming during this time period, from September 1998 to August 1999. All times are Eastern or Pacific. Affiliates will fill non-network schedule with local, syndicated, or paid programming. Affiliates also have the option to preempt or delay network programming at their discretion.
Legend
Schedule Monday-Friday Network11:00 PM11:35 PM12:00 AM12:30 AM1:00 AM1:30/1:35 AM2:00 AM2:30 AM3:00 AM3:30 AM4:00 AM4:30 AM5:00 AM5:30 AMABCLocal Programming Nightline Politically Incorrect with Bill Maher (12:07)Local Programming ABC World News NowLocal Programming ABC World News This MorningCBS FallLocal Programming Late Show with David Letterman The Late Late Show with Tom SnyderLocal Programming Up to the MinuteLocal Programming CBS Morning News Spring The Late Late Show with Craig KilbornNBCLocal Programming The Tonight Show with Jay Leno Late Night with Conan O'Brien Later (Monday-Thursday) Friday Night (Friday, 1:35-2:35)Local Programming NBC News at Sunrise Note: NBC Nightside was cancelled in September 1998
Saturday Network11:00 PM11:30 PM12:00 AM12:30 AM1:00 AM1:30 AM2:00 AM2:30 AM3:00 AM3:30 AM4:00 AM4:30 AM5:00 AM5:30 AMNBCLocal ProgrammingSaturday Night LiveLocal Programming Fox MADtv Local Programming
By network ABC
Returning series ABC World News Now ABC World News This Morning Nightline Politically Incorrect with Bill Maher
Not returning from 1997-98: ABC in Concert
CBS
Returning series CBS Morning News Late Show with David Letterman The Late Late Show with Tom Snyder Up to the Minute
New series The Late Late Show with Craig Kilborn
Fox
Returning series MADtv
NBC
Returning series Friday Night Late Night with Conan O'Brien Later NBC News at Sunrise Saturday Night Live The Tonight Show with Jay Leno
Not returning from 1997-98: NBC Nightside