I twittered the Hulu link earlier, but apparently outside the US can not view… so Here is a transcription attempt. It just wouldn’t fit in 140 chars.
It is the Halloween episode of Castle, where Mr. Fillion plays an eccentric mystery writer. Camera zooms in on him strapping on pistols, zooms on his crotch and a swoosh of his Serenity coat as he rounds a corner and pretends to take something in his gun sight. His daughter, sitting on a couch looks at him in mock amusement. He is in full out Serenity garb.
Castle: I was… I was just trying on my Halloween costume
Daughter: what exactly are you supposed to be?
Castle: Space Cowboy
Daughter: OK, A there are no cows in space. Second, didn’t you wear that like 5 years ago?
Daughter: So, don’t you think you should move on?
Castle: I like it ( slightly pouty)
I Laughed out loud.