James Kalm has on occasions presented what he feels are "historical" exhibitions. But nothing could fit that category more precisely than "Willem de Kooming: a Retrospective at MoMA". Billed as the most complete survey of this heroic artist's career ever presented, this exhibition is a once in a lifetime chance to see its full breadth. In the fourth and final episode, we view beautiful examples of de Kooning's sculptures, a major part of his out put from the late fifties until the late seventies, and an array of masterful brushy abstractions that could be called "classic de Koonings". MoMA director Glenn Lowry and Curator John Elderfield, discuss in depth the controversial late paintings, and we wrap up this unique exhibition with a gallery tour of the artists spare last works. Organized by John Elderfield, Chief Curator Emeritus of Painting and Sculpture.