Editing Instant replay (section)

==In sports production for television==
During the live television transmission of sports events, instant replay is often used to show again a passage of play that was especially important or remarkable, or that was unclear at first viewing.

Replays are typically shown during a break or lull in the action; in modern [[broadcast]]s, it will be at the next break in play, although older systems were sometimes less instant. The replay may be [[slow motion|slow-motion]] or feature shots from multiple camera angles.

With their advanced technology, [[video server]]s, have allowed for more complex replays, such as [[Freeze frame television|freeze frame]], frame-by-frame review, replay at variable speeds, overlaying of virtual graphics, and instant analysis tools such as ball speed or immediate distance calculation. [[Sports commentator]]s analyze the replay footage when it is being played rather than describing the concurrent live action.

Instant replays are used today in broadcasting [[extreme sports]], where the speed of the action is too high to be easily interpreted by the naked eye. They use combinations of advanced technologies such as video servers and [[high-speed camera]]s recording at up to several thousand frames per second.

Sports production facilities often dedicate one or more cameras to cover star players or key players likely to make a big play in a specific context (e.g., on last down and long in North American football, production crews will often isolate a wide receiver with sure hands in a crowd and/or superior foot speed). These cameras are sometimes called isolation, isolated, or iso-cams for short.<ref name=NamelessAPDrudge2020>{{cite news 
   |last=<!-- some nameless AP schlepp --> 
   |date=21 July 2020 
   |title=MLB doubles camera angles for instant replay reviews of umpires 
   |url=https://arizonasports.com/story/2328630/mlb-doubles-camera-angles-for-instant-replay-reviews-of-umpires/ 
   |accessdate=22 December 2021 
   |newspaper=Arizona Sports 
   |location=Arizona 
   |quote=Taking a chance to review instant replay, Major League Baseball doubled the isolated cameras available for video reviews to 24 this year.
}}</ref>