The phrase 'jumping the shark' was coined by radio host JonHein in 1985. He said it after watching an episode from series five of the TV show Happy Days that aired on September 20, 1977.
On Baseball Night in New York, Sal Licata, John Jastremski, Dani Wexelman and JonHein all react to Alex Rodriguez's contention that the Yankees should retire his number 13.