Episode #1.7 - S1-E7
Factual error: Mrs. Patmore has cataract surgery, which corrects her vision. Cataract surgery was performed in those days, but intraocular lenses did not exist until 1949, so the surgery simply removed the lens of the eye without replacement, leaving the patient with unfocused vision. As a result, the person had to wear thick "coke bottle" glasses to see.
Answer: Lord Sinderby purchased the house, furnished and appointed, from someone else, complete with staff that come with the home (some of whom aren't happy to be working for a Jewish family). He bought the title, as well. If the artwork featuring Jesus is valuable, he might keep it. Also interesting, his ancestors Anglicized their name, though he is proudly Jewish.
Michael Albert