The most charming, delightful, good-hearted comedy series I've ever seen. And we've watched all three seasons now and are bereft because there don't seem to be more on the way.
The show is very low-key and laid back--but slyly funny in a way that reminds me of some of the Coen brothers' work--realistic people being themselves and treated with obvious love. The synergy amongst the cast (one of whom is also the writer and director) is delightful--even the bad guys are likeable.
There's a good article HERE that will tell you more. Thanks to my English friends who alerted me to this excellent bit of television. Feel-good, funny, and fabulous--I recommend it highly. Let yourself succumb to the quiet pleasure of The Detectorists.