The unaired Gilligan’s Island pilot episode was discovered in the Turner Entertainment Co. archives and aired on TBS for the first time in October 1992.
In March 1951, a pilot episode was filmed for I Love Lucy but it never aired. It wasn’t until 1989 that a copy of the unaired pilot was found.
When Shout! Factory wanted to release the first season of Father Knows Best on DVD in 2008, it couldn’t locate one episode until a collector came forward with a 16mm print.
A black-and-white kinescope of “The Petrified Forest,” a 1955 episode of NBC’s Producers’ Showcase, was recovered in October 1986.