The 1989–90 network television schedule for the four major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1989 through August 1990. The schedule is followed by a of returning series, new series, and series cancelled after the 1988–89 season. PBS is not included; member stations have local flexibility over most of their schedules and broadcast times for network shows may vary. New series are highlighted in bold. This is the first season to feature entirely closed captioning programs on the Big Four networks.