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These are the late night Monday-Friday schedules on all three networks for each calendar season beginning September 1956. All times are Eastern and Pacific.
Talk shows are highlighted in yellow, local programming is white.
Schedule
| 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 PM | 5:00 AM | 5:30 AM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ABC | local programming or sign-off | ||||||||||||||
| CBS | local programming or sign-off | ||||||||||||||
| NBC | Fall | 11:15 PM: Tonight Starring Steve Allen* | local programming or sign-off | ||||||||||||
| Winter | 11:15 PM: Tonight! America After Dark | local programming or sign-off | |||||||||||||
| Spring | 11:15 PM: Tonight! America After Dark | local programming or sign-off | |||||||||||||
| Summer | 11:15 PM: The Tonight Show Starring Jack Paar | ||||||||||||||
- Beginning in October, due to Steve Allen's commitment on his Sunday night NBC variety show, Ernie Kovacs became host of The Tonight Show on Mondays and Tuesdays.
Sources
- Brooks & Marsh, The Complete Directory To Prime-Time Network TV Shows (3rd ed.), Ballantine, 1984
- Castleman & Podrazik, The TV Schedule Book, McGraw-Hill Paperbacks, 1984
- TV schedules, NEW YORK TIMES, September 1956-September 1957 (microfilm)