SEC adding sideline monitor to assist in replay process
John Parry on calling Super Bowl 53, pass interference replay, more - Sports Illustrated
The CFL has figured instant replay out. How long until the NFL and CFB follow suit? - Footballscoop
History of Instant Replay
Column: It's time to throw a challenge flag on NFL and college football broadcasts - Los Angeles Times
Soccer Is Getting Slower and More Fair—and That's a Problem
Big Ten officials: Gridiron's not-so secret service
No Harm, No Foul? Video Replay and Fans' Views of Referees
NFL should consider NCAA replay model – Football Zebras
Football: Keeping instant replay simple has worked in the UIL state championship, but is Texas ready to expand its use?, Sports
The referee doesn't need glasses: two reds as US soccer trials video replay, MLS