DWDD University: Het Brein
2015
Bill Nye the Science Guy
1993
Private Lives of the Monarchs
2017
Justice with Michael Sandel
2009
Secrets of the Earth
2013
The Ideal Exhibition with Hervé Tullet
2018
Great Minds Think for Themselves
1997
They Spoke Out: American Voices Against the Holocaust
—
The Really Wild Show
1986
The Secret Life of Machines
1988
The Johns Hopkins Science Review
—
The Richard Dimbleby Lecture
1972
Do-ol Ah-in Going All Directions
2019
The National Geographic Guide to Birding in North America
2017
