Led Zeppelin appeared on the BBC's 'How Late It Is' programme

Jimmy Page: "This was a pilot for an arts discussion programme directed by Tony Palmer. We supplied the musical slot and played 'Communication Breakdown' live. There were no interviews with us. The programme established itself and developed with more emphasis on music of the day. During the course of its run it had interviews with the likes of Eric Burdon, John Lennon, Yoko Ono and The Nice, amongst others. Unfortunately the BBC tape of Led Zeppelin no longer exists. This was a pilot programme."