3 January (releases)


 * 1970 - Episode one of Spearhead from Space was first broadcast on BBC1, starting Doctor Who's seventh season.
 * 1976 - Part one of The Brain of Morbius was first broadcast on BBC1.
 * 1981 - Part one of Warriors' Gate was first broadcast on BBC1.
 * 1983 - Part one of Arc of Infinity was first broadcast on BBC1, starting Doctor Who's twentieth season.
 * 2000 - Eighth Doctor Adventures novel Parallel 59 and Past Doctor Adventures story Last of the Gaderene were first released by BBC Books.
 * 2007 - The Invasion was released on Region 4 DVD.
 * 2009 - CON: The Eleventh Doctor aired on BBC Three, announcing to the public that Matt Smith would be playing the Eleventh Doctor following David Tennant's resign. Unlike most Confidential episodes, it was not broadcast along with an episode.