The Time Warrior.
Key to Time
Doctor Who: The Time Warrior
The Cybermen's first appearance on Doctor Who was in the 1966 episode, The Tenth Planet.
The Time Warrior (1973), which also introduced Sarah Jane Smith and the name of the Doctor's home planet, Gallifrey.
She first appeared in 1973 in an episode called The Time Warrior. The Doctor at the time was the third Doctor, played by Jon Pertwee.
At Christmas 2005 in Britain in the episode called The Christmas Invasion.
The comedian Ken Dodd appeared in the Doctor Who episode Delta and the Bannermen. This episode first aired from the 2nd of November 1987. Ken Dodd played the role of the Tollmaster.
She was in the very first episode.
the daleks first came into the show just around the third episode, considering that all the episodes back then were separated into two. the episode was named "dead planet" and afterwords the daleks became a major part of doctor who
The Doctor's Daughter was first, it is episode six of series four, Silence in the Library is episode eight.
Charles Dickens appeared in the Doctor Who episode "The Unquiet Dead" which aired in 2005 during the first season of the revived series. He was portrayed by actor Simon Callow.
The first episode of Doctor Who was named 'The Unearthly Child' and aired on 23rd November 1963.