Well, two more shows I was giving a try are very close to getting the axe (from me, at least). They are "Minority Report" and "Limitless". Both appeared to have interesting Sci-Fi underpinnings, but both have basically presented as nothing but police procedurals. Yes, the film Minority Report was a police procedural, but there was so much new and unique to it that it didn't become tedious. We're talking episode three and already I feel the MR series is tedious (Limitless made it to tedious by episode two, but since I recorded episode three, I'll watch it and see how it goes).
Yep - the two got the axe and I won't watch any more of them unless I hear of some dramatic change in the way the shows are conceptualized and executed.
And even though it was new last year, not this, 'Gotham' is hanging by a very thin thread, that is fraying simply the more I think about it. To quote me from another thread here:
With season 2 of Gotham, I wasn't sure there was anything potentially worse than apparently giving the Joker a backstory [seemed like it for episodes 1 and 2]... and then episode 3
...in which it is now clear that as far as the TV show Gotham is concerned, the Joker is a copy-cat criminal and not the unique insane master of crime he's been for the last 75 years.
Talk about exceeding (in a downward direction) already-lowered expectations!

What a bunch of crap.
Another series, which I binge-watched the first (1/2-)season of when I was bored (and needed something mindless to watch... or brainless, in this case) during the Summer, I doubt I'll continue with, and that was iZombie. Seemed nominally clever at first, but very quickly got tiring and formulaic. When the first episode of season 2 was available to see, it felt like a chore to set aside time to watch it. That's never a good sign.

Can there seriously be so little left (in non-'reality', non-sitcom genres) that is new that might be worth a damn?
I've seen the pilot for Supergirl and wasn't terribly impressed, but when it starts up I'll give it a few episodes before condemning it. The 'Pandora's Box - have to recollect all the sins' overarching plot (which dates back at least to the old 'Friday the 13th' TV series) is so tiring.
There are a couple more that I'm going to give a try when they start (early 2016, apparently), and those are Legends of Tomorrow and Lucifer. I have higher hopes for the latter than the former, but even there, the hopes are restrained, given the fate of Constantine last year (which I enjoyed).
I think the impression of current shows has been further eroded because I just finished rewatching Firefly over the weekend. To go from that show to anything on TV now is such a massive drop in quality and uniqueness of ideas, writing (especially the inclusion of humor in serious shows), and usually acting, it makes everything else pale in comparison.