Back in 1973, the BBC aired a radio adaptation of Isaac Asimov’s seminal Foundation Trilogy. The Foundation series details a far future universe populated by a decaying empire of humanity spread across the Milky Way galaxy. In order to prevent humanity from falling into an extended galactic dark age, Hari Seldon, founder of the prophetic statistical and sociological science of psychohistory, works to establish a Foundation of knowledge and educated society on the remote planet of Terminus. The Foundation trilogy follows the lives and adventures of a variety of Terminus citizens throughout the decades and centuries after the establishment of the Foundation.
The Internet Archive is hosting the 1973 Foundation BBC radio adaptation of the Foundation Trilogy as part of their Old Time Radio collection. It is available here for both streaming and download in multiple formats.
If you are interested in listening to the original story on audiobook rather than the radio adaptation, you can check it out through the Library! Follow these links to Foundation, Foundation and Empire, and Second Foundation.