American football rules
Super Bowl LI was the first Super Bowl to go into overtime with a 28-all tie between the Atlanta Falcons and New England Patriots, which the Patriots eventually won with James White scoring a touchdown on the Patriots' first drive.
Super Bowl XXXVIII
Super Bowl XXXVIII was an American football game between the National Football Conference (NFC) champion Carolina Panthers and the American Football Conference (AFC) champion New England Patriots to decide the National Football League (NFL) champion for the 2003 season. The Patriots defeated the Panthers by a score of 32–29. The game was played at Reliant Stadium in Houston, Texas, on February 1, 2004. At the time, this was the most watched Super Bowl ever with 144.4 million viewers.