The Shadow Line, River, Happy Valley, The Fall, Ripper Street, Peaky Blinders, Line of Duty, Taboo, The Last Kingdom, Oz, The Shield, Justified, Southland, The Wire, Deadwood, Person of Interest, Fargo, Longmire, Engrenages (Spiral) Forbrydelsen (The Killing), Bron/Broen (The Bridge), Borgen, Il Commissario Montalbano (Inspector Montalbano), Les Hommes de l'ombre (Spin), Ófærð (Trapped), Professor T.
Shitloads and shitloads more but I cannot be arsed to list them all.
Gunpowder is by all accounts excellent.
Have all of Breaking Bad, the first four series of American Horror Story & GOT and the first three series of Braquo to watch on DVD when I ever get round to them.