BBC Knowledge presents Sir David Attenborough: A Life on Earth, a special program offering an insight into the extraordinary life of the world’s best-known natural history film-maker.

Sir David Attenborough is larger than life, his distinctive voice as recognisable as his name. In this program, renowned Australian journalist Ray Martin turns the cameras away from the beloved wildlife Sir David has spent his life documenting and onto the man himself. The show is an edited interview culled from a series of sold-out events held in theatres across Australia in 2012 and 2013.