Re: How did guest stars react?
"Will there be wookies in this?"
I liked the story in Solow/Justman's Inside Star Trek where there's some big studio executive meeting, and Lucille Ball thought the yet-to-air "Star Trek" was some sort of USO show.
Dr. Howard, Dr. Fine, Dr. Howard: For Duty and Humanity!
--Men in Black, 1934.