6 January

Behind the scenes

 * 1919 - Actor Raymond Westwell was born.
 * 1934 - Actress Sylvia Syms was born.
 * 1955 - Actor Rowan Atkinson was born.
 * 1955 - Actor Arthur Bostrom was born.
 * 1968 - Episode three of The Enemy of the World was first broadcast on BBC1.
 * 1973 - Episode two of The Three Doctors was first broadcast on BBC1.
 * 1979 - Part three of The Power of Kroll was first broadcast on BBC1.
 * 1984 - Part two of Warriors of the Deep was first broadcast on BBC1.
 * 1986 - Actress Elizabeth Tan was born.
 * 2009 - Actor John Scott Martin died.
 * 2009 - Four to Doomsday was released on Region 1 DVD.
 * 2010 - In response to the so-called Ginger Controversy, complaints regarding widespread misinterpretation of the Eleventh Doctor's comment in his post-regenerative scene in TV: The End of Time about not being ginger, the BBC issued an official statement clarifying that the line referenced the Doctor's previously-stated desire to be ginger in TV: The Christmas Invasion, and also noting that both Donna Noble and Amy Pond were redheads.
 * 2010 - Filming for Series 5 took place in Cardiff at Roald Dahl Plass, attracting media attention.
 * 2010 - Big Finish audio story The Cradle of the Snake started recording at The Moat Studios.
 * 2011 - Big Finish audio story Voyage to Venus was recorded.