Replay systems, particularly instant replay, have become a cornerstone of modern sports broadcasting and officiating. However, their origins trace back to the early 1960s, when technological innovations began to reshape how audiences experienced live events. This article explores the earliest replay systems, from their debut in 1963 through their evolution up to the dawn of the digital revolution—a period that will be covered in a future article.

https://www.universityoftelevision.com/post/history-of-replay-systems-part-1-the-early-years