The following is the 1978–79 network television schedule for the three major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1978 through August 1979. The schedule is followed by a of returning series, new series, and series cancelled after the 1977–78 season. All times are Eastern and Pacific, with certain exceptions, such as Monday Night Football. New fall series are highlighted in bold. Series ending their original runs are in italics.