As if last year’s Castle Halloween episode with Nathan Fillion dressing as his character from Firefly didn’t induce enough of a geekgasm (“What are you supposed to be, a space cowboy?) this week’s ...

On the episode “Punked” of the sleuthing show Castle, Nathan Fillion’s mystery novelist Richard Castle investigated a steampunk society in New York City. At one point, our hero dons a retrotech arm ...