If your missus like Vampire diaries then check out The Originals (centres around Klaus and the original vampires). Less soppy lovey dovey **** lol.
Orphan Black is a really good series. Just came back with season 2. Revolution isn't bad. Warehouse 13 is good but its on its final season and has dropped the ball dramatically. I'd suggest Dracula but Jonathon Rhys Myers is refusing to do season 2 so that won't be returning. Fringe is awesome (we've only just got into it) but obviously cancelled but it's still 5 seasons worth. Archer is epic and funny as hell if you don't mind animated shows. Elementary, Haven, Perception, Sons of Anarchy, Defiance, The tomorrow people and Vikings are all worth checking out too