Ambassadors is a 2013 BBC production. There were three hour long episodes and none since then. The DVD box optimistically puts Series 1 on there. It's written by James Wood and Rupert Walters. The director is Jimmy Webb.
It's got David Mitchell, Robert Webb and Keeley Hawes in the lead roles and a bunch of other people I didn't know. David and Robert have appeared in oodles of stuff, some of which I've enjoyed. I particularly like their Mitchell and Webb Look series and numerous panel show appearances. I have their series Peep Show to watch someday soon.
Keeley, above with David, was recently in The Durrells, I enjoyed that a fair bit. I didn't recognize Susan Lynch's name but it turned out I've seen her in a few productions. She's one of the Embassy staff people in The Ambassadors, that's her on the right in the second picture above. Her Wikipedia page tells me she was the Selkie in The Secret Of Roan Inish. If you haven't see that, it's well worth a look, one of John Sayles better movies. Click on the link.
David is the Ambassador and Robert is the Deputy Head Of Mission. They man the British embassy in the madey-uppy country of Tazbekistan. It's right in there with all those real ex-Russian Central Asian countries and just as complicated.
It's more a light drama, with some irony fueled laughs, and every episode had one crazy bit that made me laugh out loud. Twice I played the scene back because it was quite well written and smart. All the scripts were good and the cast equally capable. I had read about it a while back but no one has posted a copy to YouTube so I could see if I liked it. I waited a bit until the DVD got to be under 10 pounds and ordered it. Glad I did. I enjoyed the series and wished they made more. Who knows maybe they will. You never can tell with the BBC.