1990–91 United States network television schedule (late night)
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These are the late night Monday-Friday schedules on all three networks for each calendar season beginning September 1990. All times are Eastern/Pacific.
Talk/variety shows are highlighted in yellow, network news programs in gold, and local news & programs are highlighted in white background.
Fall 1990
| - | 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 | ABC News Nightline | Into the Night Starring Rick Dees | local programming | ||||||||||
| CBS | local programming | America Tonight | CBS Late Night | local programming | CBS News Nightwatch | |||||||||
| NBC | local programming | The Tonight Show Starring Johnny Carson/Saturday Night Live (Sat.)/The George Michael Sports Machine (Sun., 11:30-12:00) | Late Night with David Letterman | Later with Bob Costas/Friday Night Videos (Fri., 1:30-2:30) | local programming | |||||||||
Winter 1990/1991
| - | 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 | ABC News Nightline | Into the Night Starring Rick Dees | local programming | ||||||||||
| CBS | local programming | America Tonight | CBS Late Night | local programming | CBS News Nightwatch | |||||||||
| NBC | local programming | The Tonight Show Starring Johnny Carson/Saturday Night Live (Sat.)/The George Michael Sports Machine (Sun., 11:30-12:00) | Late Night with David Letterman | Later with Bob Costas/Friday Night Videos (Fri., 1:30-2:30) | local programming | |||||||||
Spring 1991
| - | 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 | ABC News Nightline | Into the Night Starring Rick Dees | local programming | ||||||||||
| CBS | local programming | CBS Late Night | CBS News Nightwatch | |||||||||||
| NBC | local programming | The Tonight Show Starring Johnny Carson/Saturday Night Live (Sat.)/The George Michael Sports Machine (Sun., 11:30-12:00) | Late Night with David Letterman | Later with Bob Costas/Friday Night Videos (Fri., 1:30-2:30) | local programming | |||||||||
Summer 1991
| - | 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 | ABC News Nightline | Into the Night | local programming | ||||||||||
| CBS | local programming | CBS Late Night | CBS News Nightwatch | |||||||||||
| NBC | local programming | The Tonight Show Starring Johnny Carson/Saturday Night Live (Sat.)/The George Michael Sports Machine (Sun., 11:30-12:00) | Late Night with David Letterman | Later with Bob Costas/Friday Night Videos (Fri., 1:30-2:30) | local programming | |||||||||