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These are the late night schedules on all three networks for each calendar season beginning September 1979. All times are Eastern/Pacific.
PBS is not included, as member television stations have local flexibility over most of their schedules and broadcast times for network shows may vary, CBS and ABC are not included on the weekend schedules (as the networks do not offer late night programs of any kind on weekends).
Talk/Variety shows are highlighted in yellow, Local News & Programs are highlighted in white.
Monday-Friday
| - | 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 | Fall | Local | ABC Late Night | Local or sign off | |||||||||||
| November | The Iran Crisis: America Held Hostage | ABC Late Night | Local or sign off | ||||||||||||
| Spring | Nightline* (Mon.-Thur.) | ABC Late Night (Mon.-Thur.)/ Fridays (Fri, 11:30-12:40) | |||||||||||||
| CBS | local programming | The CBS Late Movie | Local or sign off | ||||||||||||
| NBC | local programming | The Tonight Show Starring Johnny Carson | The Tomorrow Show (to 2:00; Mon.-Thur.)/ The Midnight Special (Fri) | local programming or sign off | |||||||||||
Saturday
| - | 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 or sign off | |||||||||||
Sunday
| - | 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 | NBC Late Night Movie | local programming or sign off | |||||||||||
By network
ABC
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Returning Series |
New Series
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CBS
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Returning Series
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