Robyn Williams on 50 years hosting the Science Show

Robyn Williams has been the voice of ABC Radio National's Science Show for fifty years and along the way he’s written ten books, survived at least three heart attacks, two bouts of cancer, been named a National Living Treasure and had a rollicking good time.  He looks back at some of the show's defining moments with David Marr. 

• Guest: Robyn Williams, host of The Science Show
• Producer: Catherine Zengerer