I almost called this post "Swinging Durham" because this newer mystery series from the UK is set in 1960s Northern England. That would have been too grim altogether since the death sentence by hanging was still in practice at the time. It realistically takes on still serious topics such as racism in the context of the time and place. We haven't spotted any anachronisms yet.
I was a skeptical before starting on this series because we've seen a lot of these co-detective shows coming from Britain (Morse, Midsomer Murders) but don't be put off. Gently and Bacchus' relationship is fresh and new enough with a little humour, and a bit of debate. Martin Shaw is perfect as the principled Chief Inspector George Gently. His young "mop topped" assistant is John Bacchus struggling with ambition and his marriage breakdown.
We have George Gently both in dvd and blu-ray. Season One is available from the library in individual episodes while two and three come as full seasons. Season four was broadcast in 2011 so look for more episodes in future.