So I watched both seasons of Murder in the First after seeing it on this thread's list.
It's an okay show, if you're into cop dramas. It has several long arcs per season instead of the episodic format. It was a nice change of pace, but some of the storylines felt out of place or ended up going nowhere. The first season has Tom Felton speaking with an American accent, which I guess is worth a mention.
No lesbian couple in the main cast though. The second season has an important lesbian side character and I guess that her personal life plays some sort of role, but her wife rarely appears and they end up divorcing because one of them basically spends too much time working. At least they didn't break up because one of them cheated and neither of them died and they were portrayed in a sympathetic way.
Also, the resident tech girl shows up from time to time in both seasons and she has the hots for the female lead. Sometimes they flirt jokingly, but it's made clear that nothing is going to happen. They're obviously going with the safe (and snooze-worthy IMO, but what do I know) route of pairing up their male and female leads romantically after a few seasons of will-they-or-won't-they shenanigans and romantic false leads.
That makes it all the weirder when (not putting this under spoiler bars, since it's not relevant to the plot or character arcs) Mulligan, the female lead, doesn't answer when her bigoted father asks her if she's "gay now" after she went on a rant to shut him up and mentioned that gay people can get married now. While wearing a shirt with a rainbow on it. I mean, really? Teasing isn't nice, writers. And costuming department.
Mulligan's kid is great though.