Waldorf Salad is the ninth episode of Fawlty Towers which aired on the 5 March 1979.
An American and his British-born wife arrive at 9 o'clock on a rainy night. Dinner has stopped, Terry is ready to leave and Basil has never heard of a Waldorf Salad.
Terence Conoley's second appearance- Mr Johnston.
Manuel's umbrella from The Wedding Party is seen again.
Harry and Mrs Hamilton were in Room 12.