Old thread, renewed. I watch very little TV from the US to be honest. The newer ones like 1883, Yellowstone, and 1923 are good. Tulsa King is one I like. Most of my options are things like Justified, Ozark, and that type of show.
I do like British TV. A fan of Endeavour. Just watched an episode last night. Grantchester is good. Father Brown. Midsomer Murders, is great. Mrs. Brown's Boys is outrageously hilarious. Poirot, always a favorite on my part, with reruns. I'm into the period shows as well. The Viking stuff, and historical stories. Also, British Antiques Road Show, and even baking shows. I'd say 2/3 or more of what I watch is out of the UK, and one from Canada. That's Murdoch Mysteries. I love how they insert him into history, tongue in cheek. Great story lines.
If I moved to the UK, I wouldn't miss a beat on TV. I'd be as happy as a pig in slop. That's saying something since I've only been to the UK once. Loved it, and the people though.