Episodes of the classic television series, “The Open Mind,” are now available online. These are real treasures. For more than 50 years, some of the most thoughtful and influential people in every field visited this program for lively conversations about pressing issues, understanding the past, and creating visions for the future. The name of the program comes from the saying, “Keep an open mind, but not so open that your brains fall out.” The programs are now themselves essential historical artifacts, with interviews of fascinating people: Martin Luther King, Robert Redford, Malcolm X, Elie Weisel, and hundreds more. But of course in my opinion the greatest of all is this appearance by by dad, Newton Minow, who here discusses his famous “vast wasteland” speech to the National Association of Broadcasters, what he learned from Robert Kennedy, and how the great promise of mass communications has influenced society.