Boy, this is tough...
ddw, I'm afraid I'm going to have to reveal myself as one of the poor misguided fools who love Due South ;-)
I actually don't see any resemblance to Murder, She Wrote, which I personally can't stomach.
I see it more as being in the quirky, oddball spirit of Northern Exposure. What really bothers me is that they seem to have only made one or two seasons of it. I believe that Paul Gross was the executive producer of that show.
I guess there's just no accounting for my taste (or lack of it). *g*