I fully expected to see this come back as reruns - was that really 1978? Martin Mull, has always been one of my favourites.
One of my favourites was Episode 11 which featured Anne Murray, but they said because of contractual obligations she couldn't do "Snowbird" live, she had to lip sync it. I believe this was not true, but it just added to the ironic humour that was part of the show. She never did get to do it, although they made numerous tries, errors and miscues (including putting a Jerry Vale version in). At the end she gives up.
It was this sort of making fun of themselves and the industry that made this show a must-watch for me.
There was also one episode (not sure which) that had a contortionist. This young lady came out on stage balancing a glass of water on her head, then drank it - without touching it AND without spilling it. It was one of the most amazing things I've ever seen one person do.
Frank DeVol, as Happy Kyne, I did not realize how much other work he has done. Played in numerous other programs and movies, as well as doing other theme music. But his general neutral expression and deadpan delivery gave the name "Happy Kyne And The Mirth Makers" almost an ironic twist.