1989–90 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 1989 to August 1990. All times are Eastern or Pacific. 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.

Legend

Schedule Monday-Friday Network11:00 pm11:30 pm12:00 am12:30 am1:00 am1:30/1:35 am2:00 am2:30 am3:00 am3:30 am4:00 am4:30 am5:00 am5:30 amABC FallLocal Programming NightlineLocal Programming Summer Into the Night Starring Rick DeesLocal ProgrammingCBS FallLocal Programming The Pat Sajak ShowLocal Programming CBS News Nightwatch Spring Wiseguy CBS Late NightLocal ProgrammingNBCLocal Programming The Tonight Show Starring Johnny Carson Late Night with David Letterman Later With Bob Costas (Mon-Thu, 1:35) Friday Night Videos (Fri, 1:30-2:30)Local Programming

The Pat Sajak Show was reduced to 60 minutes on October 30, 1989.

Saturday Network11:00 pm11:30 pm12:00 am12:30 am1:00 am1:30 am2:00 am2:30 am3:00 am3:30 am4:00 am4:30 am5:00 am5:30 amNBCLocal ProgrammingSaturday Night LiveLocal Programming FOX Comic Strip LiveLocal Programming

Sunday Network11:00 pm11:30 pm12:00 am12:30 am1:00 am1:30 am2:00 am2:30 am3:00 am3:30 am4:00 am4:30 am5:00 am5:30 amNBCLocal ProgrammingThe George Michael Sports MachineLocal Programming

By network ABC

Returning series Nightline

New series Into the Night Starring Rick Dees

CBS

Returning series CBS Late Night CBS News Nightwatch The Pat Sajak Show

NBC

Returning series Friday Night Videos The George Michael Sports Machine Late Night with David Letterman Later With Bob Costas Saturday Night Live The Tonight Show Starring Johnny Carson

Fox

Returning series Comic Strip Live

References