"Here you have the guy who is speaking to the universality of the human experience in every molecule," Ken Burns tells Walter Isaacson on PBS's Amanpour & Co. about the subject of his latest film, Leonardo da Vinci. Sarah Burns, his co-director on the film with David McMahon, adds: "I think it's entirely central to who Leonardo was, that he had these interests across such a wide spectrum, and he didn't see those things as being separate. To him, all of these things were related and part of his larger effort to just understand the universe and everything he could about the human experience, the human body, and how all of these things are connected." You can watch their conversation here. You can watch LEONARDO da VINCI on PBS and hear Caroline Shaw's original score now.

"The most relentlessly curious person I've ever come across, and that kind of wonder, that kind of joy, that kind of excitement about learning, we can use a lot of now," Ken Burns says of Leonardo da Vinci, the subject of his latest film, on The Late Show with Stephen Colbert. Burns was on The Today Show as well, talking with host Hoda Kotb about the film. You can watch both conversations here and listen to Burns and his fellow directors Sarah Burns and David McMahon on Design Matters with Debbie Millman.