5 February

On 5 February 1811, the British Regency began when King George III lapsed into "permanent madness." (PROSE: The Adventuress of Henrietta Street, AUDIO: Frostfire)

Behind the scenes

 * 1929 - Actor John Nettleton was born.
 * 1951 - Actor Robin Sachs was born.
 * 1966 - "War of God" was first broadcast on BBC1.
 * 1972 - Episode two of The Curse of Peladon was first broadcast on BBC1.
 * 1973 - Tom Baker wrote to Head of Serials Bill Slater looking for work — Slater had previously directed Baker in a ' called '. The letter arrived just when Slater was looking for a person to recommend to Barry Letts and Terrance Dicks, who were effectively in charge of the casting, to play the Fourth Doctor. Conveniently, Baker was then appearing in , which was playing in a cinema proximate to BBC Television Centre. Slater recommended that Letts and Dicks go there to see if they thought, like him, that Baker would make an ideal Doctor. Liking what they saw, they cast Baker as the Fourth Doctor shortly thereafter.
 * 1977 - Part two of The Robots of Death was first broadcast on BBC1.
 * 1977 - Part one of TV Comic story The False Planet was first released in issue 1312.
 * 1989 - Actor Emrys James died.
 * 1993 - Stunt performer Tip Tipping died.
 * 1998 - Actor Wilfred Carter died.
 * 2000 - Recording for Big Finish audio story The Spectre of Lanyon Moor began.
 * 2001 - Eighth Doctor Adventures novel Escape Velocity and Past Doctor Adventures novel Bunker Soldiers were first published by BBC Books.
 * 2003 - Recording for Big Finish audio story Omega completed at The Moat Studios.
 * 2007 - Recording for Big Finish audio story Exotron began at The Moat Studios.
 * 2009 - The official trailer for Torchwood: Children of Earth was unveiled at the New York Comic Con and online.
 * 2009 - Battlefield was released on Region 4 DVD.