These are the late-night schedules for the four United States broadcast networks that offer programming during this time period, from September 2002 to August 2003. 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.
| Network | 11:00 PM | 11:35 PM | 12:00 AM | 12:30 AM | 1:00 AM | 1:35 AM | 2:00 AM | 2:30 AM | 3:00 AM | 3:30 AM | 4:00 AM | 4:30 AM | 5:00 AM | 5:30 AM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ABC | Fall | Local Programming | Nightline | ABC News Up Close | Local Programming | ABC World News Now | ABC World News This Morning | ||||||||
| Winter | Jimmy Kimmel Live! (12:07) | Local Programming | |||||||||||||
| CBS | Local Programming | Late Show with David Letterman | The Late Late Show with Craig Kilborn | Local Programming | Up to the Minute | CBS Morning News | |||||||||
| NBC | Local Programming | The Tonight Show with Jay Leno | Late Night with Conan O'Brien (12:35) | Last Call with Carson Daly (1:35) | Local Programming | The Tonight Show with Jay Leno (R) | Local Programming | Early Today | Local Programming | ||||||
| Network | 11:00 PM | 11:30 PM | 12:00 AM | 12:30 AM | 1:00 AM | 1:30 AM | 2:00 AM | 2:30 AM | 3:00 AM | 3:30 AM | 4:00 AM | 4:30 AM | 5:00 AM | 5:30 AM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NBC | Local Programming | Saturday Night Live | Local Programming | ||||||||||||
| Fox | MADtv | Local Programming | |||||||||||||
Returning series
New series
Not returning from 2001-02:
Returning series
Returning series
Returning series
Not returning from 2001-02: