The New Adventures of Sherlock Holmes is an old-time radio show which aired in the USA from 1939 to 1950. Most episodes were written by
the team of Dennis Green and Anthony Boucher; some early episodes were written by Green and Leslie Charteris. Originally, the show starred Basil Rathbone as Sherlock
Holmes and Nigel Bruce as Doctor Watson. Together, they starred in 220 episodes which aired weekly on Mondays from 8:30 to 9:00pm. Basil Rathbone's last episode as the
famous detective was "The Singular Affair of the Baconian Cipher." He was eager to separate himself from the show to avoid being typecast in the role. Tom Conway replaced
him in the starring role, though Nigel Bruce got top billing and was always announced first. The new series lasted only 39 episodes, and Bruce and Conway then left the
series. From then until 1950 the series continued as "Sherlock Holmes" with various actors playing the two principal parts. The show first aired on the Blue Network but
later moved to the Mutual Broadcasting System. The series was originally broadcast from Hollywood. During World War II, the show was also broadcast overseas through the
Armed Forces Radio Service.