What?! That's crazy talk. IMO Dave Goelz's World's Oldest Fraggle was brilliant, as were Boober and Traveling Matt. Muppety greatness from a creative standpoint, and Muppety brilliance from an acting standpoint. Boober's vocabulary, TM's ego, WOF's abusiveness & condescension- great stuff that Dave was great doing.
But back to the original subject of the thread, I would assume that Frank had visited the set but it is kinda disappointing that he never created any characters on it.
David "Gorgon Heap" Ebersole