I really liked Blamire. Although I have never seen Michael Bates in anything else, what I appreciated was that, despite playing a fairly opinionated and domineering character, his acting was very subtle, a glance or a gesture can be as important as a good line, I think that is lost in modern acting.
As a child in America in the early 70's, the British warhorse from the Indian campaigns, always shouting, always trying to tell their memoirs, was probably the stock British character we were most exposed to, for example Comander McBragg from Tennesse Tuxedo/ Rocky and Bullwinkle, and a fixture in every murder mystery episode of any sitcom from that time period. I suspect the stereotype, besides being classified politically incorrect today, is dying out now and may not be as recognizable to the ever-younger demographic trying to be appealed to. I doubt the character of Blamire would have weathered as well as Clegg and Compo after 30 years.
I also always wondered if Rudyard Kipling had that classic British Indian accent, he's usually depicted as generally soft-spoken in keeping with the perception of how writers should be.