Which sport has the worst instant replay system? An investigation
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History of Instant Replay
Tech: A closer look at the NFL's instant replay camera work
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Tackling Tech: An Inside Look at NFL Instant Replay for 2017
IJ Rosenberg Speaks on Renamed Corky Kell Classic, Instant Replay, GHSA Football Hall of Fame, NIL - ITG Next
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NFL Replay Officials NFL Football Operations
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On Further Review, the NFL's Instant Replay is Finally Instant
The Ice Bowl, 50 years later: An oral history of Packers-Cowboys 1967 NFL Championship Game
NFL's instant replay officials have new powers, but owners weren't interested in other major rules changes - The Boston Globe
March 11, 1986: NFL Adopts Instant Replay
The Invention of Instant Replay Lemelson Center for the Study of Invention and Innovation