5 January (releases)


 * 1974 - Episode four of The Time Warrior was first broadcast on BBC1.
 * 1974 - Part four of TV Comic story The Amateur was first published.
 * 1980 - Episode three of The Horns of Nimon was first broadcast on BBC1.
 * 1982 - Episode two of Castrovalva was first broadcast on BBC1.
 * 1983 - Episode two of ''Arc of Infinity was first broadcast on BBC1.
 * 1984 - Episode one of Warriors of the Deep was first broadcast on BBC1, beginning the twenty-first season of Doctor Who.
 * 1985 - Episode one of Attack of the Cybermen was first broadcast on BBC1, beginning the twenty-second season of Doctor Who.
 * 1998 - BBC Eighth Doctor Adventures story Kursaal and Past Doctor Adventures story The Face of the Enemy were first released by BBC Books.
 * 1998 - Timelash was released on VHS.
 * 2003 - Sometime Never... was first published by BBC Books.
 * 2009 - The Trial of a Time Lord was released on Region 4 DVD.
 * 2010 - The Keys of Marinus and The Twin Dilemma were released on Region 1 DVD.
 * 2012 - Audio story The Art of Death was first released by AudioGo.
 * 2012 - Part one of Doctor Who Adventures comic story Vengeance of the Atomon was first published.