We recently watched the 4 part series The State on Channel4 and enjoyed it.
"Award-winner Peter Kosminsky's compelling new drama, based on extensive research, follows the experiences of four British men and women who leave everything behind to join Isis in Syria."
We did watch all of Hard Sun, but weren't sure it was really worth it. On Walter Presents (Channel 4), the Scandi-semi-noir Rebecka Martinsson series is pretty good. But, on the showing of the first episode, Collateral (mentioned by Patrick at the top of this thread) is head & shoulders above anything else at the moment: don't miss it!
I just found Season One of "Green Wing" on Netflix. I laughed so hard I snorted! 2004 - 2007. OMG, I'm laughing just thinking about it! If I could buy it on U.S. compatible DVDs I would, but it's only available for the UK/EU.
Collateral -- plot line is great, but I found Carrie Mulligan's performance a bit flat, meaning, always the same expression, voice, tone, etc. That said, I was really engaged in the show.
On Acorn TV:
Girlfriends -- Season 1. Quirky, fun with shocking plot twists in every episode. "Phyllis Logan (The Good Karma Hospital, Downton Abbey), Miranda Richardson (Harry Potter films), and Zoe Wanamaker (Poirot) star in this addictive new drama from Kay Mellor, the BAFTA Award-winning creator of Love, Lies & Records."
Delicious -- Seasons 1 and 2. Filmed in Cornwall (during nice weather). Again, quirky, well-done, good acting. I liked Season 2 (just released) even better and binge-watched it last night!