NFL rule changes: Modified instant replay, more positions allowed
He Invented Instant Replay, The TV Trick We Now Take For Granted
NFL Adopts Changes to Instant Replay Review System
Instant Regret: How the Instant Replay has Ruined the NFL — Pro
The CFL has figured instant replay out. How long until the NFL and
Which sport has the worst instant replay system? An investigation
Instant replay under review next week: NFL Newswatch
On Further Review, the NFL's Instant Replay is Finally Instant
NFL Owners Vote to Centralize Instant Replay in New York Command
Instant Replay: The Green Bay Diary of Jerry Kramer by Jerry
Pros & Cons of Instant Replay in Sports - SportsRec
What rules would you change? NFL legends, experts chime in - Los