The NFL has an instant replay camera problem
History of Instant Replay
After Further Review: Kicking off the Denver Broncos season - Mile
Upon Further Review: The NFL's Replay Review — Review Party Dot Com
American football rules - Wikipedia
He Invented Instant Replay, The TV Trick We Now Take For Granted
Tech: A closer look at the NFL's instant replay camera work
The NFL has an instant replay camera problem
NFL owners approve instant-replay review of pass interference
The History of Instant Replay in the NFL – Benefit or Detriment
Creating the NFL Schedule
Accountability: Fines & Appeals