Brooklyn Dodgers 23-14 Philadelphia Eagles (lost footage of NFL game; 1939) - The Lost Media Wiki
Super Bowl II (partially found live television footage of gridiron football game; 1968) - The Lost Media Wiki
NFL America's Game: 1968 JETS (Super Bowl III) : Joe Namath, Don Maynard: Movies & TV
NFL Network to air lost NFL Films footage of Super Bowl I
Why on Earth Was the Super Bowl Turf So Bad?
Lost and found: Super Bowl I footage - Newsday
A Tape of Super Bowl I Is Sitting in a Vault. A Kickstarter Can Bring It Out. - WSJ
Super Bowl I: The Mystery of the Lost Tapes
New NFL Films Footage Upholds the Super Bowl Holding Call - InsideHook