On an otherwise slow news day, news arrives that ABC has ordered an additional episode of "Castle" this season, bringing its total to 23.

"Castle" has a new promotional photo for its upcoming Season 4, and as you can see, it's all washed out and noir-y.

If you've never read Warren Ellis' superhero book The Authority, it has a simple premise: What if superheroes stopped trying to maintain the status quo and actively tried to improve the world.

For a place that's so hard for Batman to sneak into, Arkham Asylum sure has a hell of a lot of leaks.

Last night's episode of "Castle" -- the second half of a two-part cliffhanger -- marked a ratings high for the ABC crime series, winning its time slot in part because of the "Dancing with the Stars" lead-in.