Created and written by Heidi Thomas, Upstairs Downstairs is a continuation of the London Weekend Television series that ran from 1971 to 1975 on ITV.

The series resumes the story of 165 Eaton Place, the fictional setting of both iterations of the programme, in 1936, six years after the original series concluded. Jean Marsh reprises her role as Rose Buck, who becomes housekeeper of the re-established household, with Ed Stoppard and Keeley Hawes playing its new owners Sir Hallam and Lady Agnes Holland.

Carl Davis was called upon to compose the music for the second series.