Wikipedia
Unshackled! is a radio drama series produced by Pacific Garden Mission, in Chicago, Illinois, that first aired in 1950. It is the longest-running radio drama in history and one of very few still in production in the United States. The show is aired over 6,500 times around the world, each week, on over 1,550 radio outlets and is translated and re-dramatized into eight languages on six continents.
As of March 2008, over 3,000 episodes have been produced, each 30 minutes in length. Unshackled! is produced in the same way that shows during the Golden Age of Radio were produced. Shows are transcribed (recorded) live before a studio audience. An organist provides live incidental music and a sound-effects person provides sounds in real time as the show progresses. The show has retained a consistent and distinctive quality throughout its years of production, established by the 40-year tenure, from 1950 to 1990, of Jack O'Dell as producer/director.