Great question — answering as the UphillTech team:
How did the show originally end? Was it known at the time this would be the final series or did it just 'stop'? The show was cancelled at some point during production of Series 26, which aired at the end of 1989. It was too late at that point to come up with a proper ending, plus there was an expectation among the cast and crew that the show would be revived at some point, so script editor Andrew Cartmel merely inserted a brief monologue to go at the very end of the final episode, implying that the Doctor's adventures would simply continue forever: DOCTOR : There are worlds out there where the sky is burning, the sea's asleep, and the rivers dream. People made of smoke, and cities made of...
Full answer by F1Krazy: https://movies.stackexchange.com/a/110606 (CC BY-SA 4.0).
Need it done for your business? UphillTech.
