The Mrs Bradley Mysteries (1998)

Mrs. Adela Bradley (Dame Diana Rigg) could be described as the naughty version of the rather dull Miss Marple: a quintessentially English lady sleuth, before the war, upper class, rich enough for a Rolls-Royce with private driver (George Moody (Neil Dudgeon), her hunky and faithful assistant in nearly everything), a real socialite, always on the road, sassy, even provocative, an arrogant suffragette. But her sharp sense of observation and deduction still gets the best of the criminals every single time.