Continuity mistake: In this episode, it is revealed that Mr. Lucas' first name is Dick; but way back in series 2 ("The Clock"), his first name is given as "James." This discrepancy takes place a few times over the course of the entire show run.
Are You Being Served? (1972)
1 mistake in The Old Order Changes - chronological order
Starring: Frank Thornton, John Inman, Mollie Sugden, Wendy Richard
Genres: Comedy
German Week - S3-E6
Miss Brahms: I think Mr. Rumbold should dress up as something.
Mrs. Slocombe: Yes. Wasn't Frankenstein a German?
Miss Brahms: That's right. With his nuts in his neck. [Makes twisting motions with her fingers near her neck.] Like that.
Mr. Rumbold: I wouldn't be able to take part, of course, in case I was summoned to a board meeting. But I see no reason why Captain Peacock shouldn't participate.
Captain Peacock: I can think of lots of reason why I shouldn't participate. Somebody has to have authority over the floor and these clothes that I wear symbolize that authority.
Mr Lucas: Why don't you dress up as Hitler?
Trivia: Frank Thornton, Mollie Sugden, John Inman, Wendy Richard and Nicholas Smith are the only actors to appear in all 69 episodes of the show.
Question: If Mrs. Slocombe had squatters in her new flat, why didn't she simply call the police and have them removed?
Answer: That wasn't possible in 1972. Until recently squatting was a civil offence in the UK, not a criminal one, and removing squatters was a complex and time consuming business.