Huh.  Quoting:

"-- Daniel writes: On the third day of Comic Con (Saturday), there was a panel for the upcoming follow-up series to the popular Nickelodeon animated series Avatar: The Last Airbender. The series is called The Last Airbender: The Legend of Korra, which takes place roughly seventy years since the events of the first series. As the series will see expansions in various forms of martial arts, the show's creators have sought to incorporate references to different styles. Among them is mixed martial arts, which will be used as a basis to a form of a similar sport in the series called Pro Bending. The creators called upon Ultimate Fighter 6 winner and current UFC fighter Mac Danzig to provide reference demonstration. Danzig brought in recent Strikeforce fighter Jeremy Umphries to help out and both showcased their abilities in a reference video that was shown during the panel. No airdate has been announced yet for The Legend of Korra, though it is deep into production that a trailer premiered at the panel."

Iactually know Mac.  He used to train at Legends MMA around the same time I did.  I tend to get pissy when people reference MMA as a style unto itself, but Mac is a smart dude and I have confidence that his Jiu Jitsu will translate well. I don't know Umphries personally, but have heard very good things. 

Waiting, just waiting, for Dorkman's pov.