The following is the 1958–59 network television schedule for the four major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1958 through March 1959. The schedule is followed by a of returning series, new series, and series cancelled after the 1957–58 season. New series are highlighted in bold. All times are U.S. Eastern and Pacific time (except for some live sports or events). Subtract one hour for Central and Mountain times.