Miami defeated Minnesota 24-7 in Super Bowl VIII at Houston, the second consecutive Super Bowl championship for the Dolphins, January 13. The CBS telecast was viewed by approximately 75 million people.
Rozelle was given a 10-year contract effective January 1, 1973, February 27.
Tampa Bay was awarded a franchise to begin operation in 1976, April 24.
Sweeping rules changes were adopted to add action and tempo to games: one sudden-death overtime period was added for preseason and regular-season games; the goal posts were moved from the goal line to the end lines; kickoffs were moved from the 40- to the 35-yard line; after missed field goals from beyond the 20, the ball was to be returned to the line of scrimmage; restrictions were placed on members of the punting team to open up return possibilities; roll-blocking and cutting of wide receivers was eliminated; the extent of downfield contact a defender could have with an eligible receiver was restricted; the penalties for offensive holding, illegal use of the hands, and tripping were reduced from 15 to 10 yards; wide receivers blocking back toward the ball within three yards of the line of scrimmage were prevented from blocking below the waist, April 25.
Seattle was awarded an NFL franchise to begin play in 1976, June 4. Lloyd W. Nordstrom, president of the Seattle Seahawks, and Hugh Culverhouse, president of the Tampa Bay Buccaneers, signed franchise agreements, December 5.
The Birmingham Americans defeated the Florida Blazers 22-21 in the WFL World Bowl, winning the league championship, December 5.