LittleMissLounge YouTube Channel video: Jackie Gleason - Melancholy Serenade Uploaded January 14, 2010. http://youtu.be/UOw0qDQLPn8
I'll never forget driving to Florida from Chicago in the summer of 1987, and just as I did while home in Evanston on Mutual's WCFL, flipping on Larry King's midnight radio show on Mutual somewhere north of Gainesville or so.
They're not Identified on video but you can clearly see actor/comedian Jimmy Durante and former Miami Beach and Dade County Mayor Chuck Hall in this video.
Photo of taping of Jackie Gleason and his American Scene magazine show in 1966 at Gulfstream Park, Hallandale, Florida: http://www.floridamemory.com/items/show/58634
The Village at Gulfstream Park's website has the year wrong on their website.