Golden Age of Radio programs survive. During the 1940s, Basil Rathbone and Nigel Bruce, famous for playing Sherlock Holmes and Dr. Watson in films, repeated their characterizations on radio on "The New Adventures of Sherlock Holmes", which featured both original stories and episodes directly adapted from Arthur Conan Doyle's stories. None of the episodes in which Rathbone and Bruce starred on the radio program were filmed with the two actors as Holmes and Watson, so radio became the only medium in which audiences were able to experience Rathbone and Bruce appearing in some of the more famous Holmes stories, such as "The Speckled Band".
Sherlock Holmes novel "Psmith, Journalist" (neither spoken by Holmes). The exact phrase "Elementary, my dear Watson" is used by protagonist Tom Beresford in Agatha Christie's 1922 novel "The Secret Adversary". It also appears at the end of the 1929 film "The Return of Sherlock Holmes", the first Holmes sound film. The phrase became familiar with the American public in part due to its use in The Rathbone-Bruce series of films from 1939 to 1946. Conan Doyle's 56 short stories and four novels are known as the "canon" by Holmes aficionados. Early canonical scholars included Ronald Knox in Britain and Christopher Morley in