What team to play in the hall of fame game and the super bowl in the same season?

As of October 2023, the only team to play in both the Hall of Fame Game and the Super Bowl in the same season is the Pittsburgh Steelers. They achieved this in the 1974 season, where they participated in the Hall of Fame Game and went on to win Super Bowl IX. This unique accomplishment highlights the Steelers' historical significance in the NFL.