premise: David Attenborough worked at the BBC.
hypothesis: David Attenborough . 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 . In 2002 he was named among the 100 Greatest Britons following a UK-wide poll for the BBC .