...Henry''

https://www.metv.com/stories/mclean-stevenson-appeared-on-the-cher-show-to-reassure-fans-after-abyssinia-henry

The appearance was a rumor for years, until a clip resurfaced in the 2010s.

https://www.mash4077tv.com/2016/03/found-mclean-stevenson-in-a-raft-on-cher-in-1975/

I posted about this already 2 years ago

https://www.sitcomsonline.com/boards/showthread.php?t=400384