In the scene where Mrs. Slocombe mentions her pussy during a meeting, Miss Brahms can be seen trying to fight laughing.
Mr. Mash calls Captain Peacock a "schweinehunde," the German word for "bastard."
The flags on the wall are lacking the design in the middle that would designate it as an East or West German Flag (as Germany was split during the time of broadcast). It instead uses the flag that would eventually be the flag for a combined Germany
Mr. Grainger comments on the cold weather to the German customer shopping for a coat. The man asks, "Wie bitte?" (pronounced "vee bee-te") to which Mr. Grainger responds, "Ooh, absolutely bitter!" "Wie bitte" actually means "Pardon/Excuse me."