During World War II, C.S. Lewis gave many "radio talks" on the BBC. His was the second-most-popular voice during the war, after Churchill's.
This is a clip from one of the surviving tapes.
To cite this story, using Author. Title of story. Name of web site. Date of access <URL>. MLA Guidelines:
Bos, Carole "C.S. Lewis - From a Radio Broadcast" AwesomeStories.com. Date of access