Pittsburgh defeated Minnesota 16-6 in Super Bowl IX at New Orleans, the Steelers' first championship since entering the NFL in 1933. The NBC telecast was viewed by approximately 78 million people.
The Memphis Southmen of the WFL signed Larry Csonka, Jim Kiick, and Paul Warfield of Miami, March 31.
The divisional winners with the highest won-loss percentage were made the home team for the divisional playoffs, and the surviving winners with the highest percentage made home teams for the championship games, June 26.
Referees were equipped with wireless microphones for all preseason, regular-season, and playoff games.
The Lions moved to the new Pontiac Silverdome. The Giants played their home games in Shea Stadium. The Saints moved into the Louisiana Superdome.
The World Football League folded, October 22.