Miss Marple is directed to the "television room" which is said to be "tucked well away" and that "the Americans like it" as if no proper British person would watch. The British Broadcasting Corporation (who first broadcast this series) is credited with being the world's first regular television service with high-level image resolution, starting 2 November 1936. The disparaging remark about the BBC's first UK rival dates the episode's setting as after ITV's launch in 1955.
The song on the radio at the diner is 'Rock With the Caveman' by Tommy Steele.
Diners are not used in the United Kingdom, they are called cafeterias.
Diners are not used in the United Kingdom, they are called cafeterias.
The piece Bess Sedgwick is playing on the piano when Elvira goes to see her is Mouvement perpetuel no. 1 (1919) by Francis Poulenc, the same piece Farley Granger plays in Rope
Joan Greenwood (Selina Hazy) appeared with another famous portrayer of Miss Marple, Margaret Rutherford, in the 1952 film version of The Importance of Being Earnest.