Character's first names vary throughout the series: Mr. Lucas is variously James or Dick; Mr. Harman starts as Harry, then becomes Beverley; the cleaner has three different names, always played by the same actress.
Telephones change locations and types, either wall mounted phones on the ends of the display cases, at other times desk models on top of the counters. Additionally, cash registers come and go.
Throughout the series, the scripts constantly change the location of the Ladies' and Gentlemens' departments, sometimes referring to it being on the third floor, sometimes on the fourth. Also, the theme song lyrics indicate the department is on the first floor.
The sex of Mrs. Slocombe's cat, Tiddles, frequently changes from him to her.
Mr Humphries continually goes from either living with his mother to living on his own with his mother always coming to stay.
Captain Peacock continues to use his Army rank after retiring from the service. However, in the British Army, an officer must achieve at least the rank of Major (the next one up from Captain) in order to continue using it in everyday civilian life. At best, he would be permitted to use the address "Mr. Stephen Peacock, Captain, British Army (retired)" for formal occasions only.
Having said that, it's hinted on more than one occasion that he may actually have only been a Corporal, only claiming to have been a Captain in order to bump up his credibility; it's therefore possible that he may not have been aware of this rule.
Having said that, it's hinted on more than one occasion that he may actually have only been a Corporal, only claiming to have been a Captain in order to bump up his credibility; it's therefore possible that he may not have been aware of this rule.
Throughout the series, the entire staff of the floor takes breaks together. That would mean that the entire floor would be closed due to lack of employees during break times. Indeed, one episode specifically deals with this problem. Mr. Grace feels that they are losing too much business during this hour, and pushes the lunch break back to later in the afternoon, leading the staff to hit the roof.
Often during the opening credits, women dressed identically to Miss Brahms and Mrs. Slocombe are seen in the background working around displays or behind counters- obviously part of the sales staff, but they are never included in anything the other characters do.