NFL100: 30 years ago instant replay helped decide the outcome of a game … and it wasn't pretty – Football Zebras
History of Instant Replay
On Further Review, the NFL's Instant Replay is Finally Instant
The NFL has an instant replay camera problem
Behind-the-scenes with NFL sideline technology: Microsoft and Bose power team communication – GeekWire
NFL Owners Vote to Centralize Instant Replay in New York Command Center, News, Scores, Highlights, Stats, and Rumors
No major changes made to NFL instant replay; League will consider additional camera angles - The Washington Post
NFL makes major change to instant replay by making called and uncalled pass-interference penalties reviewable
Art McNally, N.F.L.'s 'Father of Instant Replay,' Dies at 97 - The New York Times
NFL replay rules could reportedly change dramatically in 2021
Instant Replay: The Green Bay Diary of Jerry Kramer: Kramer, Jerry, Schaap, Dick, Yardley, Jonathan: 9780307743381: : Books
A look at TV's instant replay through the years – The Denver Post
History of Instant Replay
The Call That CHANGED Instant Replay FOREVER