The story of Live at Treorchy, the best-selling album that turned an unknown comedian and singer called Max Boyce into an international star, launching a career spanning 40 years and two million record sales. The album that changed Max Boyce's life also captured how Wales was changing in the early 1970s and still stands as an icon of Welsh identity four decades later. Among those describing the impact Live at Treorchy had on them are broadcaster Huw Edwards, comedian Jasper Carrott and rugby legend Gareth Edwards.