NFL: How many Super Bowls have gone to overtime?
How Many Super Bowls Have The Browns Won?
What was the last Super Bowl to go into overtime? - The San Diego Union-Tribune
What was the last Super Bowl to go into overtime? - Los Angeles Times
How Many Super Bowls Have The Patriots Won?
Super Bowl history: Which MAC school has had the most representatives in previous Super Bowls? - Hustle Belt
What was the last Super Bowl to go into overtime? - The San Diego Union-Tribune
How Many Super Bowls Have Gone to Overtime?
The Falcons lost a Super Bowl due to NFL's overtime rules
Prop Challenge, Day IX — Will we finally have overtime in a Super Bowl? - NBC Sports
The Patriots Make Super Bowl History
New England Patriots Win Super Bowl in Thrilling Overtime – Rolling Stone