17 February (production)


 * 1969 - The Mists of Madness was commissioned by Terrance Dicks, to be written by Brian Wright. Wright later however accepted an post in Bristol, and never completed the season 7 serial. Its place in the schedule was later replaced by Inferno.
 * 2010 - The BBC, before having a new trailer, released a new Eleventh Doctor promotional image featuring the Doctor, Amy Pond, a Dalek, a Weeping Angel, and the first glimpse of a new enemy, the Smiler.
 * 2010 - Matt Smith chose the winner in a "design a TARDIS console" contest conducted on Blue Peter. The console design was later used in the series 6 episode The Doctor's Wife, fifteen months later.
 * 2013 - An interview between Ed Stradling and show runner Steven Moffat was screened at the Gallifrey One 2013 convention. In it, Moffat confirmed that Mark Gatiss would be writing an episode featuring Ice Warriors. He also stated that, of all his scripts, The Big Bang was probably his personal favourite, and revealed that the title was actually a deliberate sexual innuendo, as it was the episode in which River Song was conceived.