No momentum for big instant replay rule changes – Football Zebras
How instant replay has revolutioned sports on TV – The Denver Post
Instant Replay: The Green Bay Diary of Jerry Kramer: Kramer, Jerry
The NFL has an instant replay camera problem
A look at TV's instant replay through the years – The Denver Post
Mile High: Instant replay is ruining sports
Upon further review – Instant replay works
NFL will get help from an officiating command center this season
The NFL has an instant replay camera problem
The History of Instant Replay in the NFL
Is Instant Replay in Football Doing More Bad Than Good?