1989–90 United States network television schedule (late night)

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List of American television programs currently in production

Morning: 1987–88
1988–89
1989–90
1990–91
1991–92

Overnight: 1987–88
1988–89
1989–90
1990–91
1991–92

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

Light blue indicates Local programming.
Gray indicates encore programming.
Yellow indicates late night talk or variety shows.
Gold indicates network news programming.

Schedule

Monday-Friday

Network		11:00 pm	11:30 pm	12:00 am	12:30 am	1:00 am	1:30/1:35 am	2:00 am
ABC	Fall	Local Programming	Nightline	Local Programming
ABC	Summer	Local Programming	Nightline	Into the Night Starring Rick Dees		Local Programming
CBS	Fall	Local Programming	The Pat Sajak Show		Local Programming			CBS News Nightwatch
CBS	Spring	Local Programming	Wiseguy		CBS Late Night		Local Programming	CBS News Nightwatch
NBC		Local 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

Network		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
NBC		Local Programming	Saturday Night Live			Local Programming
FOX		Comic Strip Live		Local Programming

Sunday

Network		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
NBC		Local Programming	The George Michael Sports Machine	Local Programming

By network

ABC

Returning series

Nightline

New series

Into the Night Starring Rick Dees

CBS

Returning series

NBC

Returning series

Fox

Returning series

Comic Strip Live

v t e United States network television schedules (late night)
1949–50 1950–51 1951–52 1954–55 1955–56 1956–57 1957–58 1958–59 1959–60 1960–61 1961–62 1962–63 1963–64 1964–65 1965–66 1966–67 1967–68 1968–69 1969–70 1970–71 1971–72 1972–73 1973–74 1974–75 1975–76 1976–77 1977–78 1978–79 1979–80 1980–81 1981–82 1982–83 1983–84 1984–85 1985–86 1986–87 1987–88 1988–89 1989–90 1990–91 1991–92 1992–93 1993–94 1994–95 1995–96 1996–97 1997–98 1998–99 1999–2000 2000–01 2001–02 2002–03 2003–04 2004–05 2005–06 2006–07 2007–08 2008–09 2009–10 2010–11 2011–12 2012–13 2013–14 2014–15 2015–16 2016–17 2017–18 2018–19 2019–20 2020–21 2021–22 2022–23 2023–24 2024–25

United States network television schedules (late night)

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