sentences:  His early career in radio, then in film and television led to great recognition as a documentary maker in the 1970s and 1980s.His early experimental short documentaries "Ashes", "The Town That Lost a Miracle", and "All That We Need", led to an invitation to direct "Tangata Whenua", a six-part television documentary series that presented the language, culture and politics of New Zealand's Maori people to a mainstream prime-time audience (in 1974) for the first time.The series was made in collaboration with producer John O'Shea of Pacific Films and historian and writer Michael King.