History of Instant Replay
Tackling Tech: An Inside Look at NFL Instant Replay for 2017
New rules approved at 2023 NFL owners meetings, including jersey number changes
Super Bowl 2020 referee, officials: Who is assigned to 49ers vs. Chiefs?
What rules would you change? NFL legends, experts chime in - Los Angeles Times
History of Instant Replay
NFL games are taking way too long – so here are eight ways to speed things up, NFL
The NFL routinely dominates TV ratings. How did the league become the behemoth it is today? - The Athletic
States Experiment With Instant Replay in High School Football
Instant replay on practice field helping run game
The Invention of Instant Replay Lemelson Center for the Study of Invention and Innovation
The History of Instant Replay in the NFL – Benefit or Detriment??