* HeyItsThatGuy / RetroactiveRecognition:
** To put it simply, anybody ''with a pulse'' from 1967 to 1978 will have guest-starred on the show.
** Hell, even some of ''the audience members'' were (and are) recognizable. Modern viewers will likely find ''[[TheSilenceOfTheLambs Hannibal Lecter]]'' being in the audience rather hilarious.
** "A Special Evening with Carol Burnett": Eunice's psychiatrist will be familiar to ''[[TheGoldenGirls Golden Girls]]'' fans as the pyromaniac in the episode "'Twas the Nightmare Before Christmas".