The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
The NFL kicks off global review to consolidate its $400 million media account, Media
Upon further review, NFL's replay system could remain intact - The Boston Globe
NFL Replay Officials NFL Football Operations
NFL Street 2 Review - GameSpot
Should Penalties be Allowed to be Reviewed? // The Roundup
How NFL rule changes for 2021 will impact the game: Fewer low blocks, expanded review and balanced holding calls
NFL insider notes: Run of blatantly bad calls may force changes, MVP race goes down to wire, more from Week 15