Visible crew/equipment: When the Hamiltons arrive, Mrs Hamilton says 'May I introduce my husband.' The boom mic is seen at the top of the screen.
Visible crew/equipment: When Basil's trying to persuade Sybil about the woman in the guest's room, the shadow of a boom mic appears on the top wall.
Answer: A possible explanation can be found here: http://tviv.org/Fawlty_Towers/Waldorf_Salad Quote: "This is, of course, sarcasm, as southern California in general and Los Angeles in particular is famous for its palm trees".
Mortug