NFL refs and instant replay are destroying the league
NFL admits to breakdown in instant replay process
When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
History of Instant Replay
History of Instant Replay
The NFL has an instant replay camera problem
NFL's instant replay officials have new powers, but owners weren't interested in other major rules changes - The Boston Globe
The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
The History of Instant Replay in the NFL – Benefit or Detriment??
The NFL has an instant replay camera problem