Fawlty Towers (1975)

Gourmet Night (a.k.a. Gourmet's Paradise) - S1-E5

Revealing mistake: When the Colonel first meets Basil, the same shot is used twice of the Colonel twitching.

The Wedding Party (a.k.a. Sex) - S1-E3

Basil: Did you ever see that film, "How To Murder Your Wife"?
Major Gowen: How To Murder Your Wife"?
Basil: Yes, awfully good. I saw it six times.

The Anniversary - S2-E5

Trivia: Sybil's friend, Audrey, who Sybil is frequently seen talking to on the telephone, has only one on-screen appearence in 'The Anniversary'. She is seen at the very end, when Sybil has just walked out on Basil.

Communication Problems (a.k.a. Theft) - S2-E1

Question: What's the name of the piece of music played when Basil turns up the radio after Mrs Richards says it (the radio) doesn't work?

Neil Jones