Season 20
Episodes
1 Chuck Norris Sep 23, 2005 
2 General Douglas MacArthur: The Return of a Legend Sep 30, 2005 3 Albert Einstein Oct 7, 2005 4 Ben & Jerry's Oct 14, 2005 5 Bill Clinton: Hope, Charisma & Controversy Oct 21, 2005 6 Catherine the Great Oct 28, 2005 7 Charles Darwin: Evolution's Voice Nov 4, 2005 8 J. Pierpont Morgan: Emperor of Wall Street Nov 11, 2005 9 Mussolini: Italy's Nightmare Nov 18, 2005 10 Peter Nov 25, 2005 11 Peter the Great: The Tyrant Reformer Dec 2, 2005 12 Pocahontas: Ambassador of the New World Dec 9, 2005 13 Pontius Pilate Dec 16, 2005 14 Rasputin: The Mad Monk Dec 23, 2005 15 Saint Paul Dec 30, 2005 16 Solomon Jan 6, 2006 17 The Hiltons Jan 13, 2006 18 The Kellogg Brothers: Corn Flake Kings Jan 20, 2006 19 William Shatner: Captain's Log Jan 27, 2006 20 Al Qaeda Feb 3, 2006 21 Frank Serpico: Honor Bound Feb 10, 2006 22 Gerald R. Ford: Healing the Presidency Feb 17, 2006 23 Jane Austen Feb 24, 2006 24 The Brontë Sisters Mar 3, 2006 25 The Home Depot Mar 10, 2006 26 Thomas Edison: Father of Invention Mar 17, 2006 27 Woodrow Wilson: Reluctant Warrior Mar 24, 2006 28 Howard Schultz and Starbucks Mar 31, 2006 29 Solomon and Sheba: An Epic Love Story Apr 7, 2006 30 Weird Al Yankovic Apr 14, 2006 31 Bill Gates: The Sultan of Software Apr 21, 2006 32 Caroline Kennedy: The Next Generation Apr 28, 2006 33 David Ben-Gurion May 5, 2006 34 Ian Fleming May 12, 2006 35 Lucky: The Story of Charles Lindbergh May 19, 2006 36 Ted Kennedy: Tragedy, Scandal, and Redemption May 26, 2006 37 The Apostles Jun 2, 2006 38 The Harry Potter Kids Jun 9, 2006 39 Barack Obama Jun 16, 2006 40 George Washington: American Revolutionary Jun 23, 2006 41 Wall Street Jun 30, 2006 42 Jeff Dunham: Birth of a Dummy Jul 7, 2006 43 Kate Middleton: Uncommon Bride Jul 14, 2006 44 Pippa Middleton: Her Life Jul 21, 2006 45 Under 21 and Filthy Rich Jul 28, 2006
2 General Douglas MacArthur: The Return of a Legend Sep 30, 2005 3 Albert Einstein Oct 7, 2005 4 Ben & Jerry's Oct 14, 2005 5 Bill Clinton: Hope, Charisma & Controversy Oct 21, 2005 6 Catherine the Great Oct 28, 2005 7 Charles Darwin: Evolution's Voice Nov 4, 2005 8 J. Pierpont Morgan: Emperor of Wall Street Nov 11, 2005 9 Mussolini: Italy's Nightmare Nov 18, 2005 10 Peter Nov 25, 2005 11 Peter the Great: The Tyrant Reformer Dec 2, 2005 12 Pocahontas: Ambassador of the New World Dec 9, 2005 13 Pontius Pilate Dec 16, 2005 14 Rasputin: The Mad Monk Dec 23, 2005 15 Saint Paul Dec 30, 2005 16 Solomon Jan 6, 2006 17 The Hiltons Jan 13, 2006 18 The Kellogg Brothers: Corn Flake Kings Jan 20, 2006 19 William Shatner: Captain's Log Jan 27, 2006 20 Al Qaeda Feb 3, 2006 21 Frank Serpico: Honor Bound Feb 10, 2006 22 Gerald R. Ford: Healing the Presidency Feb 17, 2006 23 Jane Austen Feb 24, 2006 24 The Brontë Sisters Mar 3, 2006 25 The Home Depot Mar 10, 2006 26 Thomas Edison: Father of Invention Mar 17, 2006 27 Woodrow Wilson: Reluctant Warrior Mar 24, 2006 28 Howard Schultz and Starbucks Mar 31, 2006 29 Solomon and Sheba: An Epic Love Story Apr 7, 2006 30 Weird Al Yankovic Apr 14, 2006 31 Bill Gates: The Sultan of Software Apr 21, 2006 32 Caroline Kennedy: The Next Generation Apr 28, 2006 33 David Ben-Gurion May 5, 2006 34 Ian Fleming May 12, 2006 35 Lucky: The Story of Charles Lindbergh May 19, 2006 36 Ted Kennedy: Tragedy, Scandal, and Redemption May 26, 2006 37 The Apostles Jun 2, 2006 38 The Harry Potter Kids Jun 9, 2006 39 Barack Obama Jun 16, 2006 40 George Washington: American Revolutionary Jun 23, 2006 41 Wall Street Jun 30, 2006 42 Jeff Dunham: Birth of a Dummy Jul 7, 2006 43 Kate Middleton: Uncommon Bride Jul 14, 2006 44 Pippa Middleton: Her Life Jul 21, 2006 45 Under 21 and Filthy Rich Jul 28, 2006