Award-winning actress Siân Phillips takes a look back at the BBC's landmark 1975 adaptation of Richard Llewellyn's classic novel How Green Was My Valley. Siân's role as Beth, the matriarch and heart of the Morgan family, was crucial to this portrayal of a traditional Welsh mining community during a time of huge upheaval. She recalls how the production came together and what it was like working with her fellow cast, including Welsh icon Stanley Baker in what would be one of his final roles. As well as some of her favourite personal memories, she also considers the drama's legacy and explores how it has stood the test of time.