Yeah, Brian Epstein in the early days was always telling John to downplay the fact that he was married - for the very reason that the Be-Sharps' manager gave, more bluntly - and Cynthia was urged to keep out of sight frequently.
Actually now that I think of it, the Be-Sharps episode did have quite a few more laughs than I said upthread. (Grammy for "Outstanding Soul, Spoken Word or Barbershop Album"! "Look, 'Baby On Board'! Now people will stop intentionally ramming our car!" "Strati-who-vius?")
/
Oh, just thought of another references: Lisa's "Yellow Submarine"-like reverie after the dentist ...