This Museum of Television & Radio seminar examines how the C-Span network has influenced culture and politics in the United States. Extensive audio visual material on the Lyndon Johnson and Ronald Regan administrations are preserved and made accessib le through their presidential libraries and C-SPAN. In this session Richard Reeves and Jack Valenti review clips on those presidents and discuss what the tapes reveal about national security, foreign policy, and the presidency. Originally aired on Decemb er 14, 2005; moderator Josh Mankiewicz.