The NFL has an instant replay camera problem
Turnover on downs is now subject to automatic replay review
The NFL has an instant replay camera problem
NFL season begins with questions on pass interference replay - Los
March 11, 1986: NFL Adopts Instant Replay
How instant replay has revolutioned sports on TV – The Denver Post
Tech: A closer look at the NFL's instant replay camera work
Hawk-Eye NFL Football Operations
Behind-the-scenes with NFL sideline technology: Microsoft and Bose
On Further Review, the NFL's Instant Replay is Finally Instant
Georgia approves use of instant replay for high school football
History of Instant Replay