Gwen Ffrangcon Davies, who played the Dowager, was 100 years old when this was filmed in 1991. She died the same month it premiered, having turned 101.
This story features scenes from an all-male production of Gilbert & Sullivan's The Mikado.
The story is set in 1894, even though earlier episodes were set after 1900.
The dog, Maximilian, is an English Mastiff.