Which episode has the hotel sign reading FLOWERY TWATS?

The hotel sign reads FLOWERY TWATS in The Anniversary. It is the eleventh episode of Fawlty Towers and the fifth episode of the second series.

The altered sign is one of the programme's recurring visual jokes. In the first series, letters gradually fall away because of poor maintenance. In the second series, the letters are deliberately rearranged into comic anagrams, supposedly by the paperboy. FLOWERY TWATS is the most famous example because it is a genuine anagram of FAWLTY TOWERS.

The episode centres on Basil's attempt to stage a surprise wedding-anniversary party for Sybil. He pretends that he has forgotten the date, causing Sybil to storm out and forcing Basil and Polly into an elaborate deception involving a false illness and a disguised stand-in.

Viewers sometimes associate the phrase with The Psychiatrist, where the paperboy's sign prank is more directly revealed. However, the exact FLOWERY TWATS arrangement belongs to The Anniversary, making the stored answer the canonical one.