In "Serious Jibber-Jabber," Conan O'Brien has lengthy, uninterrupted conversations with interesting people on topics which fascinate him. In this first episode, Pulitzer Prize-winning Teddy Roosevelt biographer Edmund Morris visits for a free-wheeling chat about the remarkable achievements and complexities of the larger-than-life 26th President -- and how modern presidential candidates stack up to history. (thetvdb.com)