This episode must have occurred while Danny Kaye was performing in "Two By Two" on Broadway as Noah, for he was on crutches.
Danny was first guest, if I recall correctly, and was his usual funny self, talking about the challenges of being on Broadway while on crutches. But then he topped his own performance.
The next guest was Julie Newmar - Stupefyin'Jones (Lil Abner), Catwoman (Batman), Miss Devlin (Twilight Zone) - that Julie Newmar.
She strode past Danny with her bust at his face level, and he did a double take and ended in a rigid, frozen position with his jaw dropped that he held for as long as the audience was laughing, and it seemed like they laughed forever!
A Danny Kaye classic.