43. 'The Americans'
There's never been a TV marriage like this one: Keri Russell and Matthew Rhys play a pair of deep-cover Russian spies living in the D.C. suburbs in the early 1980s. They pretend to be a nice, normal, happy American couple – except these two do things like kill a hit man to the strains of "Tainted Love." The FX masterwork is both a taut espionage thriller and a bleakly intimate marital drama – as if leading double lives full of deceit and betrayal makes this couple real Americans after all.