The network television coordinator with orange sleeves will lower his arm when the commercial is over.
During each half of a network-televised game, there are ten prescribed commercial breaks following the official kickoff. Two are firmly scheduled, and eight others are worked in during breaks in the play.
Pre-scheduled commercial breaks:
- The end of the first (or third) quarter
- The two-minute warning of the second (or fourth) quarter
Other instances used for commercial breaks (eight total required per half):
- A timeout called by either team
- Instant replay stoppage
- Game stoppage after a score
- Game stoppage after a kickoff or punt (excluding the opening kickoff of each half)
- Game stoppage after a turnover
- Injury timeout
Two commercial breaks during the typical 12-minute halftime period are considered separate.
Networks are more apt to front-load their commercials in the first and third quarters, to prevent an overrun in the second and fourth quarters respectively. However, in the event that at least one early-window game is running long (after 4:25 p.m. ET) on the doubleheader network, the network will normally hold its commercials for the late window until all audiences have joined the late games, to ensure maximum coverage for its advertisers. In the rare event that the first quarter of a late game ends before all early games on that network have ended, the network may either take a break consisting entirely of network promos / PSAs, or not take a break at all during the between-quarters timeout, and those commercials are rescheduled for later in the game.
If a team calls a timeout and the network decides to use it for a commercial break, a representative from the broadcast crew stationed on the sidelines wearing orange sleeves makes a crossing motion with his hands to alert the officials. The referee declares it a "two-minute timeout."
Once a broadcast has fulfilled the 8 "random" breaks, game stoppages are no longer needed for commercials. The orange sleeve will hold his hands down in a twirl motion to alert the officials. If a team calls a timeout, the referee will declare it a "30-second timeout." Once any timeout in a half is declared a 30-second timeout, all remaining timeouts will be of the same duration.
Since the 10 total commercial breaks for the second half are to be finished prior to the end of regulation, commercial breaks are rarely needed in overtime situations, apart from a break immediately after the end of regulation. Commercials for these purposes are sometimes pre-sold on an if-needed basis (such as the specialized AIG "overtime" ads often seen during the early 2000s).
In many cases, overtime periods are conducted without any commercials. By definition, a game that has entered overtime is tied, and so the game is still undecided, thus increasing the appeal of the given game. This also allows the extended broadcast to finish in a timely manner. In cases of long overtime periods, networks have been known to have a commercial break during a lengthy injury time out. During postseason play, the very rare instances of double overtime will feature a commercial between periods.
***Resource quoted from Website
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