Super Series with intelligent and realistic story

The setting in the 80's is awesome.
The mixture of episodes of dialogue, past, everyday .. is good. There is little "feeling-blah-blah" and what is included is really realistic and not exaggerated (the tensions between the "spouses" etc).
Who has knowledge of the circumstances at the time and the spirit, the will feel quickly sucked into the time.

Watch out!
They want to see the blood, murder and manslaughter are usually wrong. There are scenes of violence, but most of the voltage is just supported by the intelligent and interesting twists in history. And to stay with the reality, agents murders were very rare, as these (as in the series as well) very quickly lead to escalations that will bring neither side what.

I can understand the series (at least in English) recommend without restrictions!