Oddly enough, Frank Zappa (put on a puppet show) and Lowell George (played the harmonica with his brother) were on the same episode!
Of course, Zappa went on to create the Mothers of Invention and George started the wonderful Little Feat. Before he did that however, he played guitar in Frank Zappa’s Band.
Frank ended up firing him for “being too good” and he went on to start The Factory, Little Feat, and his own brief but marvelous solo career.
Unfortunately both of them left us much too young with Frank Zappa dying on December 4, 1993 and Lowell George passing on June 29, 1979.