31 December (releases)


 * 1966 - Episode three of The Highlanders was first broadcast on BBC1.
 * 1966 - Part two of the TV Comic story The Extortioner was first published.
 * 1977 - Part seven of the TV Comic story The Aqua-City was first published.
 * 1988 - The Official Doctor Who & the Daleks Book was first published by St Martin's Press.
 * 2006 - Part one of Blood of the Daleks was first broadcast on BBC7.
 * 2008 - The Torchwood Magazine comic story "The Storm" was first published.
 * 2013 - The Doctor Who Adventures comic story By the Book was first published.
 * 2014 - The Highest Science, The Rani Elite, An Ordinary Life and Trial of the Valeyard were released by Big Finish.