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Line of scrimmage
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== Presentation during broadcasts == Modern video techniques<ref>[[Sportvision]] [[1st & Ten (graphics system)|1st & Ten]] graphics system.</ref> enable broadcasts of [[American football]] to display a visible line on the screen representing the line of scrimmage. The line is tapered according to the camera angle and gets occluded by players and other objects as if the line were painted on the field. The line may represent the line of scrimmage or the minimum distance that the ball must be moved for the offensive team to achieve a [[first down]].
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