1973–74 United States network television schedule (late night)

These are the late night schedules on all three networks for each calendar season beginning September 1973. 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.

ABC
Returning Series
 * ABC's Wide World of Entertainment

Not returning from 1972-73
 * The Dick Cavett Show

CBS
Returning Series
 * The CBS Late Movie

NBC
Returning Series
 * The Midnight Special
 * The Tonight Show Starring Johnny Carson
 * The Weekend Tonight Show

New Series
 * The Tomorrow Show