One of the benefits of traveliing as much as I have in the past 18mths is I get to catch up on a lot of TV. This show is one of the best ever and close watchers will know that the scripts benefited from the likes of George Pellecanos, Denis Lehane and Richard Price. (Cameo's for all I think).
Unfortunately, the Paley Center has now made this video unavailable. Maybe is has to do with Gov. O'Malley.