Matthew Sweet talks to the comedian Ken Dodd about his life and career. Seventy seven years after he made his debut as a ventriloquist in Liverpool Dodd is still touring the country with his Happiness show. In the 1960s he broke box office records at the London Palladium where he played twice nightly for 42 weeks and has sold almost as many records as the Beatles. He talks to Matthew about why he will never stop performing and his interest in the theories of humour and comedy.