- July 22, 1990 | A World of IdeasThe Nobel Prize-winning professor of theoretical physics discusses the simplicity and complexity of the universe with Bill Moyers.
- October 31, 1988 | A World of IdeasThe physics Nobelist discusses how the East and West approach scientific study and the understanding of scientific phenomena.
- September 23, 1988 | A World of IdeasThe physicist and astronomer talks with Bill about scientific inquiry, modern breakthrough in science, and the threat of nuclear war.