Calendargirl
The original ‘Miss Marple’, the Joan Hickson ones.
I feel like one of the cast, seen them so many times,
but the combination of the scenery, the language, the clothes, the houses, village life, plus the occasional murder, but nothing too gruesome or shocking.
The 1950’s, so evocative. The class system, still so evident, the aristocracy, the middle and working classes, the maids and cooks….
It's a "me too" on that one. And some of the old Poirots, the 1930's art deco et al.
And film wise of course the wonderful Gosford Park, very upstairs downstairs. (on Amazon Prime and Disney right now)
Portillo's rail journeys?
Or "Actor Bill Nighy is the beloved, distinctive narrator of the hit travel documentary series World's Most Scenic Railway Journeys
(produced for Channel 5 in the UK and available on Apple TV and Prime Video).
There is a great river series as well iirc.