22 February (releases)


 * 1964 - "The Roof of the World" was first broadcast on BBC tv.
 * 1969 - Episode five of The Seeds of Death was first broadcast on BBC1.
 * 1969 - Part four of TV Comic story Martha the Mechanical Housemaid was first published.
 * 1975 - Part one of The Sontaran Experiment was first broadcast on BBC1.
 * 1975 - Part seven of TV Comic story Death Flower was first published.
 * 1982 - Part three of The Visitation was first broadcast on BBC1.
 * 1983 - Part three of Terminus was first broadcast on BBC1.
 * 1997 - Part eight of Radio Times comic story Perceptions was first published.
 * 2002 - Part two of "Planet of Blood" was first released on the Doctor Who website.
 * 2010 - The Fall of the House of Gryffen was first broadcast on Disney XD.