13 September (releases)


 * 1969 - Part two of TV Comic story The Brotherhood was first published.
 * 1975 - Part three of Terror of the Zygons was first broadcast.
 * 1975 - Part one of TV Comic story The Sinister Sea was first published.
 * 1980 - Part three of The Leisure Hive was first broadcast on BBC1.
 * 1986 - Part two of The Mysterious Planet was first broadcast on BBC1.
 * 1989 - Part two of Battlefield was first broadcast on BBC1.