Instant replay is a technology used in sports to review decisions made by officials during a game. It allows referees to watch video footage of specific plays to ensure that calls are accurate. This process helps to reduce errors and improve fairness in the game. The use of instant replay has become common in many sports, including football, basketball, and baseball. Each sport has its own rules about when and how replay can be used, often focusing on critical moments like scoring plays or fouls. This technology enhances the viewing experience for fans and players alike.