Nick Carter, Master Detective was a Mutual radio crime drama based on tales of the fictional private detective Nick Carter from Street & Smith's dime novels and pulp magazines. Nick Carter first came to radio as The Return of Nick Carter, a reference to the character's pulp origins, but the title was soon changed to Nick Carter, Master Detective. A veteran radio dramatist, Ferrin Fraser, wrote many of the scripts.
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.