Another vote for Continuum here. Exceptional, and I love the subversion of the 'terrorist's are the enemy' premise and the ambiguity of how that plays out.
Arrow just keeps getting better and better too.
I've recently started to watch the first season of the updated Battlestar Galactica and it's ruddy marvellous in it's existential, sociological and philosophical explorations. Although I still miss the awesome theme music from the original, I take comfort in the fact that Tricia Helfer is the sexiest woman on this here earth.

And the fact that photos of her playboy shoot are on line.......
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"When a culture's music is lifeless, that culture is bound for more trouble than just having nothing decent to listen to"