These are the late-night schedules for the three television networks during the 1970–71 season. All times are Eastern and Pacific.
PBS (which launched on October 5, 1970) is not included, as member television stations had local flexibility over most of their schedules, and broadcast times for network shows might have varied. ABC and CBS are not included on the weekend schedules because the networks did not offer late-night programs of any kind on the weekend.
Talk/Variety shows are highlighted in
yellow, Local News & Programs are highlighted in white.| bgcolor="#C0C0C0" | - | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ABC | Local programming | The Dick Cavett Show | Local programming or sign-off | ||||||||||||
| CBS | Local programming | The Merv Griffin Show | Local programming or sign-off | ||||||||||||
| NBC | Local programming | The Tonight Show Starring Johnny Carson | Local programming or sign-off | ||||||||||||
| bgcolor="#C0C0C0" | - | 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 | The Weekend Tonight Show | Local programming or sign-off | ||||||||||||
Returning Series
Not returning from 1969-70
Returning Series
Returning Series