Yin Yang Yo! is a Flash animated television series created by Bob Boyle for Jetix. Produced by Jetix Animation Concepts as the third Jetix original series, it first aired on August 26, 2006, as a sneak peek and premiered on September 4, 2006, in the United States. The show debuted on Jetix in the United Kingdom on February 5, 2007, after a sneak peek preview on January 27, 2007, while making its Canadian television premiere on Family Channel on March 25, 2007. The series is supplied with writers and animators' staff associated with The Fairly OddParents, 6teen, Clone High, Wow! Wow! Wubbzy! and Danny Phantom. Head writer Steve Marmel, an anime fan, took an inspiration from various anime like FLCL and anime-influenced shows such as Teen Titans. The series centers on two anthropomorphic twin rabbits named Yin and Yang, and their sensei-like panda figure named Yo, a master of fictional mystical martial arts called Woo Foo.
During 2007, this show was nominated for British Academy Children's Award by the BAFTA in the International category, but lost to Nickelodeon's SpongeBob SquarePants. From its launch on June 1, 2011, to late 2012, Disney XD Canada aired reruns of the series.
The show is about two 11-year-old rabbits named Yin and Yang who train under Master Yo, a grumpy old panda. They learn the sacred art of Woo Foo, a special type of martial arts that involves both might and magic. They must work together to defeat evil villains and forces movitivated on destroying, corrupt or dominate society.
During the first season, the primary goal was to defeat the Night Master, a powerful enemy. During the second season, there are three primary storylines. The first one sees Yin and Yang trying to prevent other villains from being crowned the new Night Master. The second is Yang's own quest to find powerful mystic artifacts by some later-revealed-to-be villains: four evil heads who he thinks are the masters of Woo Foo. The third sees Yin and Yang against the original and reborn Night Master Eradicus — ultimately trying to build a Woo Foo army to fight against his army