Arakawa Under the Bridge

If Durarara was last season's "omgwtf" show, Arakawa has the potential to be this season's. The main character is the heir to a very rich and powerful company, and his family has the motto "Never be indebted to anyone." When he falls into a river and almost drowns, a girl named Nino saves his life. When he asks her what she wants to repay the debt, she says she wants him to fall in love with and live with her. The twist? She lives under a bridge and is batshit insane. She claims to be from Venus.

In fact, the show has the feeling of everyone except the main character being completely nuts, be it Nino or the "Village Chief" whom he has to meet (and get a new name from) in order to live on the riverbank. The village chief is man that seems to live in the river, wears a kappa suit, and insists that he's a kappa.

Seriously, this show has the potential to be one of the funniest shows in the past year, possibly rivaling Bakemonogatari, although that is unlikely, due to the sheer awesomeness that permeates Bakemonogatari to it's core.