The War Games

The War Games was the seventh and final serial of season 6 of Doctor Who. It was the final story of the 1960s and the last produced in monochrome. It was notable for introducing the Time Lords and for being the first time that the Doctor's home planet was seen. It was also the first story in which Derrick Sherwin was credited as producer. Discounting The Trial of a Time Lord as four narratively linked stories, it was the longest Doctor Who story to survive the purging of the BBC's videotape archive and currently marks the earliest point in the series where first-time viewers may begin watching Doctor Who in chronological order without encountering any missing episodes. It was also the first story to have a large gap of time between it and the next one.

The final episode saw the departure of Patrick Troughton as the Second Doctor and Frazer Hines and Wendy Padbury as companions Jamie McCrimmon and Zoe Heriot. It was the first time in the history of Doctor Who that either a companion or an incarnation of the Doctor made their last regular appearance in the concluding episode of a season. It was also the first time that an incarnation of the Doctor and all his companions were written out of the program in the same story. Also, unlike most regeneration stories, the new lead actor did not appear in the final moments of the tenth part.

The story also featured a father and son playing roles on screen: David Troughton, the son of Patrick Troughton, appeared in this story.