Continuity mistake: The Gentlemen's and Ladies' Department is on the first, third, or fourth floor of Grace Brothers, depending on the episode.
Continuity mistake: The set up of the canteen changes from episode to episode. It is never the same way twice.
Continuity mistake: If a character says their assistant number throughout the show, they are different each time.
Continuity mistake: Sometimes Mrs. Slocombe has discretion over both inventory and displays and what they will and will not sell in the ladies department, other times its Captain Peacock, Mr. Rumboldt or others that have the final say.