The following is the 1990–91 network television schedule for the four major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1990 through August 1991. The schedule is followed by a of returning series, new series, and series cancelled after the 1989–90 season. All times are Eastern and Pacific, with certain exceptions, such as Monday Night Football. PBS is not included; member stations have local flexibility over most of their schedules and broadcast times for network shows may vary.