81-year-old Canadian, same age as the original poster, DrRTN. I had already been watching European non-English mystery series in translation for some time. One website had various other recommendations, with the one that caught my eye being "Are You Human Too"? (Korean, about an android duplicate of the son a scientist had lost to her wealthy father-in-law.) Very good performance by the ML, probably not the best script but I really enjoyed it. Second Asian drama was "Goblin"... no turning back after that.
It's been about five years, not a direction I would have predicted. However, at some point I realized that I didn't have to just watch current US dramas - I could watch the best TV fare in the world spanning decades. (Realistically, since English translation is required, most is from the last 20 years.)