Dick Mills was in charge of sound effects and all the rest then, and he put the voice through a ring modulator or whatever gizmos he'd got at the time to make it sound a little more electronic.
I don't know, people take chances on stage. It's a big free speech zone, a comedy show. So sometimes things happen, you say things that are a little bit off the edge.
No idea is so antiquated that it was not once modern. No idea is so modern that it will not someday be antiquated.