The following is the 1956–57 network television schedule for the three major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1956 through March 1957. The schedule is followed by a of returning series, new series, and series cancelled after the 1955–56 season. New fall series are highlighted in bold, while shows ending their runs are highlighted in italics. Each of the 30 highest-rated shows is listed with its rank and rating as determined by Nielsen Media Research.