Sir David Attenborough is an 87-year-old British broadcaster and naturalist whose documentary career has spanned over 60 years working with the BBC, where he has written and presented numerous nature documentaries, most notably the ten-part "Life" series. He is the only person to have won a BAFTA award in black and white, color, HD, and 3D formats, and has been praised as a great communicator and educator and the greatest broadcaster of his time.

2. David Attenborough
Sir David Attenborough is eighty seven years old, his documentarian
career has spanned over sixty years. Mr. Attenborough has wrote and
presented numerous documentaries in conjunction with the BBC; his
most successful being „Life series‟ (ten series). He is the only person
to have won a BAFTA in black and white, color, HD and 3D. David has
been called "the great communicator, the peerless educator” and “the
greatest broadcaster of our time.”