I feel that Elementary is Sherlock Holmes given the standard Hollywood TV treatment. These shows all feel the same, just as, back in the day, Kojack, Cannon, Magnum PI all fit a template. I guess it has to do with budgets, shared writers, tried-and-true formats, that sort of thing. No daring. I watched a lot of Elementary but I haven't missed it since I stopped.
I gravitate -- strongly -- towards shows which offer something different, more daring. Legion (that first episode was stunning), True Detective season #1, the black comedies we've discussed elsewhere, that's the stuff I find more interesting.
I'll have to look for Killjoys. I hope it's not too silly, I seem to have trouble with silly (I think it's a fault, not a feature of mine!)