The following is the 1948–49 network television schedule for the four major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1948 through March 1949. The schedule is followed by a of returning series, new series, and series cancelled after the 1947–48 season. This was the first season in which all four networks then in operation in the United States offered nightly prime time schedules Monday through Friday.