The David Sparks Cross Wits with the all-game-show-hosts episode was a complete fluke from my collection.
I was home from college and leafing thru the local paper's TV listings. WBNX/55 was a brand new station with a lot of reruns. The paper listed it as the Jack Clark version, so I found a blank tape and set the timer.
Bummed it wasn't the Clark version, but seeing Goen/Kennedy/Tomarken/Peck ganging up on David well made up for it.