Death and destruction, devils and dragons, saints and salvation. The stories preserved in the medieval stained glass of York Minster and some of the city's parish churches come to life in words, sounds and music. Stained glass conservator Peter Gibson and art historian Richard Marks celebrate the modes and means of storytelling across the centuries. They piece together the mysteries hidden in the glass and throw some light on the stories illuminated in the windows with readings spanningl,500 years. With Nigel Forde and Bridget Foreman. Producer Andy Cartwright