The New Adventures of Sherlock Holmes was an old-time radio show which aired in the USA from October 2, 1939 to July 7, 1947. The show first aired on the Blue Network but later moved to the Mutual Broadcasting System. The radio stories were action packed, filled with atmosphere, and featured great music by Lou Kosloff, as well as excellent sound effects.

Originally, the show starred Basil Rathbone as Sherlock Holmes and Nigel Bruce as Dr. Watson. Together, they starred in 220 episodes which aired weekly on Mondays from 8:30 to 9:00pm. Commercialism seeped into the radio show from the start, as Watson himself, played by various actors, took on the co-host role with a spokesman for G. Washington Tea as a visitor ready to hear a Holmes story. Before a blazing fire with tea always at the brew, Watson reminiscences the great tales between comments on how good the tea is! Bromo Quinine sponsored some of the earlier programs on the NBC Blue Network and for a period Parker Pen was the sponsor.