Doctor Who - Season 23

 https://www.wikiwand.com/en/The_Trial_of_a_Time_Lord

The Trial of a Time Lord is a 14-part science fiction serial in the British science fiction television series Doctor Who. The serial, produced as the show's twenty-third season, aired in weekly episodes from 6 September to 6 December 1986. The only Doctor Who presentation of its kind, it contains four adventures: The Mysterious Planet, Mindwarp, Terror of the Vervoids, and The Ultimate Foe – Colin Baker's final story.

The idea for the serial stemmed from several production changes to Doctor Who, such as reduced screen time for the season and a request from BBC controller Michael Grade that the series contain less violence and more humour.[1] Several problems occurred during production, including the death of scriptwriter Robert Holmes, and the resignation of script editor Eric Saward. This was the last serial to star Colin Baker after he was dismissed from the role when it ended