My quick take having now seen Arrow's wrap up is:
Haven't seen the Arrow finale yet... but wow. We're way off each other.
Gotham is at the top of the list for me. It really, really had issues starting out, but this season, it seems like they knew they were on the cusp of not getting renewed, so they said "**** it" and put seven seasons worth of story lines into it. The only down side is, really, as-is, I don't give a flying horse **** about Bruce's character. Like, if I didn't *know* what he's supposed to become, I'd be watching this series all like "Seriously, this kid again?" It's not that he's a bad actor or anything - his character just seems really, really shoe-horned into the main plots because he's Batman.
Flash is a lot of fun for me. I am really enjoying it.
Arrow... it's hit-or-miss middle-ground for me. I wish they'd stop with the flashbacks. I like to think they're building to something, but they're really just pulling me out of the moment. What, one more year of them?
Supergirl - the Flash episode is amazingly fun, but, overall, I just am not a fan. I don't care about any of the characters, the show doesn't seem to have enough of budget for the effects they try to pull off, so they come off looking cheesy, the occasional insertion of hints about Superman just pulls me out of the show and annoys me to no ends. I do hope they pull her into the main-stream TV universe and this will give them an excuse to ditch Superman altogether. I don't see how they can do this though.
Legends of Tomorrow is a complete cluster**** and every week my wife and I ask each other why we're still watching it. It's just bad.
You're not going to get another show like it as it was a really subtle show and people expect in your face or else no one notices.
South Park had the best commentary on King of the Hill in their Cartoon Wars episodes. The main action is going on with a wacky fight scene that goes through an office for King of the Hill staff. There's a big banner that's "King of the Hill: 10th Season" and all of the staff just continues working while all the wackyness goes through their office. I feel like this was a tongue in cheek reference to exactly what you're explaining - King of the Hill is, at it's core, a mundane story of everyday life - Hank doesn't just up and quit his job and get a new, wacky job every third episode. Pop culture is kept to a minimum (and when it is, it's something like Peggy going to Nashville). There are no aliens (Gribble: "That's just what they want you to think!") or what-have-you. It's just fun.
Netflix should fund a King of the Hill movie set ten years after the last episode.