George Carlin- ' War of the Hotels'

I just saw the ep of "War of the Hotels" and I believe George Carlin was in this episode. His name is not mentioned and he had only a few lines. I remember a young Mr. Carlin that was credited in an ep of "That Girl". The voice and height seemed to match. I googled young George Carlin images and sure enough looks just like the guy I saw on this ep. Anyone else aware of this episode?