Today, David Attenborough turns 100. He is, without question, Britain’s greatest national treasure; a man who has devoted his career to helping the public engage with the natural world. But his story is also the story of television. Attenborough joined the BBC just as television ownership hit its biggest period of growth, then went on to shape the medium, both on and off camera, over the next decades. He is as important a figure in television as you will ever find, and here are his wildest moments. 1. Big break (1952) At the age of 26, Attenborough gains his first television credit, producing Coelacanth, in which biologist Julian Huxley discusses the rediscovery of an ancient lobe-finned fish thought to be extinct. Like much of Attenborough’s early work, the show has been lost to time. 2. The gameshow debut (1953) Attenborough makes his first screen appearance. It’s on the gameshow Animal, Vegetable, Mineral?, in which a panel of experts are challenged to identify unusual objects from museums. 3.…