"King Lear" was broadcast live on the BBC Third Programme on 29 September 1967, starring John Gielgud, Barbara Jefford, Barbara Bolton and Virginia McKenna as Lear and his daughters. At Abbey Road Studios, John Lennon used a microphone held to a radio to overdub fragments of the play (Act IV, Scene 6) onto the song "I Am the Walrus", which The Beatles were recording that evening. The voices recorded were those of Mark Dignam (Gloucester), Philip Guard (Edgar) and John Bryning (Oswald).