How many minutes is the ball actually in play during an NFL broadcast?

How to get close to this number

Count the plays. A game has somewhere around 130 plays between the two teams, and a play lasts a handful of seconds from snap to whistle. Multiply and the total ball-in-play time comes out in the low tens of minutes — which is a shocking result derived from two entirely unremarkable inputs.

The structure of the sport is what produces it. Play stops after every down, and the time between plays is occupied by huddles, formations and substitutions rather than by action. A three-hour broadcast is mostly the spaces between plays, and as the explanation notes, more of the airtime goes to commercials than to football.

Note the age of the source: this analysis is from 2010, and the sport has since introduced measures intended to reduce dead time. The finding has been replicated repeatedly with similar results, but the exact figure describes a specific study of a specific season rather than a permanent property of the game.