Crime Story (1986-1988)
Before Michael Mann was a big huge director of big huge movies, with an increasing number of big huge failures behind him, he was primarily a TV guy. Most people will probably cite Miami Vice, as his claim to fame, but I'll go with this classic crime series which lasted only two season.
Crime Story is to gangster dramas on TV, what The Godfather is to gangster dramas on the silver screen. It's raw, even cynical at times, with a flawless period style. And the fate of some of these characters will break your heart.
It's been a while since I caught up with it, but the complete series has been released on DVD, and I'll give a spin soon. You should too, if for no other reason than to listen to the awesome theme again.
Never forget to love it.