For World Radio Day, Outlook has put together some of our favourite stories about radio and how it has helped communities and listeners in unexpected ways.

We hear from Luis Huincache Panchillo, who runs Chile’s first digital Mapuche radio station, Italian Massimo Vallati who started a community radio station to stop a football club from being vandalised during the night, and John Watson from New Zealand, who's station Sleep Radio plays ambient music to help its audience nod off.

Finally, we have an extended interview with British DJ Deke Duncan. For decades, Deke has run a pretend music radio station from his garden shed, with his friends. Typically, he had only one listener - his wife. But in 2018 he finally got his own radio show on the BBC. He told Jo Fidgen all about it.

Presenter: Andile Masuku

Producers: Alice Gioia and Harry Graham

Photo: Deke Duncan

Credit: Courtesy of Deke Duncan