This also appears on my other blog, The Land of Whatever.
Scatman Crothers (Hong Kong Phooey) guest starred on Sanford & Son in January 1975, in the season 4 episode, "The Stand-In's", playing an old friend of Fred's (Redd Foxx), and we find that they had a nightclub act back in Fred's days in St. Louis.
Early on, we get a duet of "All of Me", and later, Fred & Bow Legs (Crothers) revive their old act, along with a reluctant Lamont (Demond Wilson) on stage. Small wonder that 8 months later, Crothers would land a featured role on Chico & the Man that would further raise his profile for a new generation who hadn't heard his jazz recordings in the 50's.
Here's "The Stand-In's":