The NFL has an instant replay camera problem
Replay review in gridiron football - Wikipedia
Upon Further Review: The NFL's Replay Review — Review Party Dot Com
The NFL has an instant replay camera problem
Has The NFL's Instant Replay Run Its Course?
History of Instant Replay
The History of Instant Replay in the NFL – Benefit or Detriment
The History of Instant Replay in the NFL
The NFL has an instant replay camera problem
He Invented Instant Replay, The TV Trick We Now Take For Granted