First in the chair in this series of The Meaning of Life is Gay's long-time friend and former colleague, Sir Michael Parkinson. Parky discusses, with remarkable candour, his journey from South Yorkshire Sunday School teacher to agnostic Grand Old Man of broadcasting. He reveals how marriage to his Irish Catholic sweetheart, Mary Heneghan, has been the bedrock of his career and also talks openly about what got him into, and out of, trouble with drink. He tells us how reporting the atrocities of war convinced him there couldn't be a God but also reveals that he prayed before every show. This week, Sir Michael Parkinson ponders The Meaning of Life.