Here Are Some of The Longest Super Bowl Games in NFL History – NBC Los Angeles
How many times has the Super Bowl gone into overtime? - Sports Illustrated
What was the last Super Bowl to go into overtime? - The San Diego Union-Tribune
New England Patriots to Face Los Angeles Rams in Super Bowl
First-Ever Overtime Super Bowl Attracts 111.3 Million TV Viewers - WSJ
Patriots Make History, Win Super Bowl in Overtime
Super Bowl XLVII - Wikipedia
Overtime rules may have ruined the perfect Super Bowl
NFL: How many Super Bowls have gone to overtime?
NFL: How many Super Bowls have gone to overtime?
Tom Brady, Patriots erase 25-point deficit to win Super Bowl in OT
Super Bowl overtime rules: What happens if regulation ends in a tie?