BROADCASTS.com

Arrowhead Stadium, the home of the Kansas City Chiefs, the N.F.L.\u2019s defending champions, is a very loud place. During a 2014 game, a sound meter captured a decibel reading equivalent to a jet\u2019s taking off, earning a Guinness World Record for \u201cLoudest crowd roar at a sports stadium.\u201d\n\nAround 11 a.m. on Thursday, Sept. 7, Brian Melillo, an audio engineer for NBC Sports\u2019 flagship N.F.L. telecast, \u201cSunday Night Football,\u201d arrived at Arrowhead to prepare for that evening\u2019s game against the Detroit Lions. It was a big occasion: the annual season opener, the N.F.L. Kickoff game, traditionally hosted by the winner of last season\u2019s Super Bowl. There would be speeches, fireworks, a military flyover, the unfurling of a championship banner. A crowd of more than 73,000 was expected. \u201cArrowhead is a pretty rowdy setting,\u201d Melillo said. \u201cIt can present some problems.\u201d\n\nBroadcasting a football game on live television is one of the most complex technical and logistical challenges in entertainment. Jody Rosen went behind the scenes of the mammoth broadcast production.