22 February

Behind the scenes

 * 1933 - Actress Sheila Hancock was born.
 * 1940 - Actress Judy Cornwell was born.
 * 1964 - "The Roof of the World" was first broadcast on BBC1.
 * 1969 - Episode five of The Seeds of Death was first broadcast on BBC1.
 * 1975 - Part one of The Sontaran Experiment was first broadcast on BBC1.
 * 1982 - Part three of The Visitation was first broadcast on BBC1.
 * 1983 - Part three of Terminus was first broadcast on BBC1.
 * 1995 - Actor Nicholas Pennell died.
 * 2011 - Actor Nicholas Courtney died.