A unique entry in the Arrowverse is about to air tonight (Dec. 1) on The CW, bringing some festive cheer and old-fashioned holiday charm to the DC shared universe. It might sound like the kind of wacky gag that would feature in an episode of Legends of Tomorrow, but the network is really serving up Beebo Saves Christmas, a fully-animated Christmas special all about the world's cuddliest God of War.