Sir David Attenborough is an English veteran broadcaster and naturalist. He is best known for writing and presenting the nine Life series, in conjunction with the BBC Natural History Unit, which collectively form a comprehensive survey of animal and plant life on the planet. He is also a former senior manager at the BBC, having served as controller of BBC Two and director of programming for BBC Television in the 1960s and 1970s. He is the only person to have won BAFTAs for programmes in each of black and white, colour, HD, and 3D. Attenborough is widely considered a national treasure in Britain. In 2002 he was named among the 100 Greatest Britons following a UK-wide poll.