Season 23
Episodes
1 Britain's X-Files Jan 9, 2004 2 The Lost Liner and the Empire's Gold Jan 16, 2004 3 The Secrets of Enzo Ferrari Jan 23, 2004 4 The Mysteries of the Medieval Ship Jan 30, 2004 5 How Mad Was King George? Feb 6, 2004 6 Who Killed Rasputin? Oct 1, 2004 
7 The Lost Heroes Oct 8, 2004 8 The Mystery of the Black Death Oct 15, 2004 9 The Black Pharaohs Oct 22, 2004 10 The Secrets of the Mary Rose Oct 29, 2004 11 Julius Caesar's Greatest Battle Nov 5, 2004
7 The Lost Heroes Oct 8, 2004 8 The Mystery of the Black Death Oct 15, 2004 9 The Black Pharaohs Oct 22, 2004 10 The Secrets of the Mary Rose Oct 29, 2004 11 Julius Caesar's Greatest Battle Nov 5, 2004