2006–07 United States network television schedule (late night)

These are the late night schedules for the four United States broadcast networks that offer programming during this time period, from September 2006 to August 2007.

Affiliates will fill non-network schedule with local, syndicated, or paid programming.

Affiliates also have the option to preempt or delay network programming at their discretion.

Note: On NBC, Poker After Dark premiered on January 1, 2007, the network took back the 2:00 a.m. timeslot from its affiliates.

Some NBC affiliates did not air Poker After Dark in the 2:00 a.m. timeslot, opting to air syndicated programming, encore of late local news or paid programming instead.