Instant replay makes its debut during the Army-Navy football game in Philadelphia, Pennsylvania, United States.

Instant replay or action replay is a video reproduction of something that recently occurred, both shot and broadcast live.

The Army–Navy Game is an American college football rivalry game between the Army Black Knights of the United States Military Academy (USMA) at West Point, New York, and the Navy Midshipmen of the United States Naval Academy (USNA) at Annapolis, Maryland. The Black Knights, or Cadets, and Midshipmen each represent their service's oldest officer commissioning sources. As such, the game has come to embody the spirit of the interservice rivalry of the United States Armed Forces. The game marks the end of the college football regular season and the third and final game of the season's Commander-in-Chief's Trophy series, which also includes the Air Force Falcons of the United States Air Force Academy (USAFA) near Colorado Springs, Colorado. The series has been uninterrupted since 1930. Through the 2024 meeting, Navy leads the series 63–55–7.

Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania. It is the sixth-most populous city in the United States with a population of 1.6 million at the 2020 census, while the Philadelphia metropolitan area with 6.33 million residents is the nation's ninth-largest metropolitan area. Philadelphia is known for its culture, cuisine, and history, maintaining contemporary influence in business and industry, culture, sports, and music.