Hm, never got into the Walking Dead yet, but maybe that will come when i run out of series.
Theres a few from Syfy and Starz i recommend.
I am talking about:
Syfy
Stargate Universe, and that one is nothing like all the other Stargate series or movie, i think i only tried it because Robert Carlyle played one of the leads, an he is an actor i find pretty damn good.
Defiance, a very interesting futuristic series that is still running, with good acting and a reflective storyline which touches on various current and social issues with a little twist.
Starz Originals
Spartacus: Blood and Sand.
Spartacus: Gods of the Arena.
Spartacus: Vengeance.
Spartacus: War of the Damned.
One of the best series i ever saw, and i went through them in a sort of a marathon because it was so well filmed, acted and i just didn't want to stop watching
Then, without turning this into a mile-long post, titles like Black Sails, and Da Vinci's Demons also really were impressive so far.
I also liked the first episodes of Falling Skies, Orphan Black and @ Simmo, Hannibal. Even if that with the 9 seasons is true, you still should watch the first two seasons, which does have kind of an ending to it...Definitely worth it.
I will deffo check this 12 Monkeys out, seems like a winner too.
I think nowadays the series and the mini series have more entertainment value then the actual movies, they can pull you in deeper, since they have more time to do so, and as the budgets for them have significantly improved, so did the quality with which they are produced. My prediction is that actors could well be more focused on establishing a career in TV as opposed to movies these days and in the near future.