Ripley's Believe It or Not is a radio show hosted by its creator, Robert Ripley himself. The show features strange and bizarre stories collected from Ripley's travels around the world, with each episode focusing on a specific theme like beauty, South America, war facts, inventions, or the craziest people. The show also includes dramatic reenactments of stories and customs, comedy sketches, and musical interludes. During part of its run, music was provided by Ozzie Nelson and His Orchestra, with Harriet Hillard (later Harriet Nelson) performing vocals.

The radio show first aired in 1930 and continued in various formats, time lengths, and with different sponsors until its end in 1948. The show's success provided funds for Robert Ripley to continue his world travels and discover more unusual facts for audiences to enjoy. This collection of Ripley's Believe It or Not radio show includes both 15 and 30-minute episodes. Related media adaptations have included television shows, comic books, and even a chain of museums, showcasing the enduring popularity of the franchise since its inception as a newspaper panel.

Sources: wikipedia.org, otrcat.com