33 Half Moon Street is a captivating South African radio show from the post-Golden Age that follows the thrilling cases of detective agency Assignments Unlimited, based at 33 Half Moon Street. The agency is led by Chief Investigator Aubrey Mason, played by the talented Michael Todd, and specializes in solving uncommon cases while guaranteeing success every time. The show has a tone reminiscent of the classic “Address Unknown”, trading in missing persons cases for unique and challenging investigations.

The show initially aired in 1965-66 and featured engaging writing by Adrian Steed and Douglas Laws, who were both well-known figures in the South African radio scene. Despite being from South Africa, the show's accents are minimal, making it easy for international listeners to enjoy. With its compelling plots, high production values, and excellent audio quality, 33 Half Moon Street offers an entertaining experience for fans of detective stories and who-dun-its.

Notable episodes include "Parson's Pride," "A Bag of Coal for Mr. Lazenby," and "Green for Danger." Throughout its run, the show developed a loyal fan base, following the determined Aubrey Mason as he tackles various challenging assignments with determination and skill. Immerse yourself in the gripping world of 33 Half Moon Street, where no case is too uncommon, and success is always guaranteed.