Do you mean the British and the US versions?
I have seen the British version several times, including its original UK broadcast. It is brilliant, iconic, and I wonder why I would want to watch any remake? I don't think that I would. Maybe I have good taste, or maybe I am narrow-minded. Unless I watch the US version, I'll never know, but, like the experience of eating some very wonderful food, I want to keep that flavour, and not have it disturbed by some other, so I have no plan to watch the US version.