Jim Henneman: Indisputable Evidence That Instant Replay Isn't Going Anywhere - PressBox
Art McNally, the 'Father of Instant Replay,' dies at age 97 - WHYY
NFL Replay Officials NFL Football Operations
NFL Replay Officials NFL Football Operations
Rule change expanding role for replay official is expected to pass - NBC Sports
He Invented Instant Replay, The TV Trick We Now Take For Granted : The Two-Way : NPR
Football meets tech: A brief history of technology on the gridiron - CNET
On Further Review, the NFL's Instant Replay is Finally Instant
The Call That CHANGED Instant Replay FOREVER
Instant replay has even more amazing changes yet to come – The Denver Post
The History of Instant Replay in the NFL – Benefit or Detriment??