Replay in sports: Ranking the systems from best to worst
Jim Henneman: Indisputable Evidence That Instant Replay Isn't
NFL owners approve expanded use of instant replay to review pass
MLB finally ready to reap benefits of new replay digs
NFL replay reviews, challenges drop with new rules and tech - ESPN
NFL Instant Replay Process
NFL will get help from an officiating command center this season
Will NFL finally fix the catch rule? - NBC Sports
Not-so-instant replay: Eagles need TD oddy reviewed twice
The NFL has an instant replay camera problem
On Further Review, the NFL's Instant Replay is Finally Instant
Juan's World: Upon Further Review, Here We Go Again!
How instant replay is ruining professional sports, one coach's