A look at TV's instant replay through the years – The Denver Post
Flashback 1986: The NFL Adopts Instant Replay
Instant replay in Major League Baseball - Wikipedia
A look at TV's instant replay through the years – The Denver Post
Instant Replay (NFL SuperPro foe)
obs-instant-replay/README.md at master · tomaae/obs-instant-replay
History of Instant Replay
Upon Further Review: A Brief History of Instant Replay
The blown calls in baseball history that instant replay wouldn't