The world of pro football is a game that is often seen but the sounds of the game are what truly reveal the intensity of the conflict. When the audio is combined with the visual of the NFL, the results reveal a world that fans have witnessed but few have ever heard or understood. A pioneer in wireless microphones and location sound for over 25 years, NFL Films has been specializing in uncovering what is being said on NFL gridirons, sidelines and in the stands of pro football. The results have been fascinating, informative, funny and highly entertaining. In this video, you'll discover the hidden world of "The Pit," and find out why coaches call it the most violent area on a football field. We'll also help you unravel the quarterback cadence and learn why defenders jump offsides so often. Ever wonder what is being said in the locker room and bench area? Do you know what "jolly", "zip", "snake eyes", "buck naked" and "boss" really mean? Find out here.