The Worst Cartoon Show of All Time?

Platypus Comix says it's "The Mork and Mindy-Laverne and Shirley-Fonz Super Hour". Sounds about right to me.

Though around the same time, Hanna-Barbera was reportedly asked to make a "WKRP In Cincinnati" cartoon series with all the characters as dogs. The plan was abandoned when "WKRP" was moved to a low-rated time slot, but that might have been worse than Laverne and Shirley in the army or even the animated version of Punky Brewster.