The Legend of Korra is an American animated television series, that premieres on the Nickelodeon television network on April 14, 2012. The series is a sequel to Avatar: The Last Airbender, which aired on the same network from 2005 to 2008, and is currently set to run for 26 episodes
First off, for those who are new to the series, all of the people that have stated the previous seasons to be called 'Avatar: The Last Airbender' are dead wrong. It is called 'Avatar: The Legend Of Aang'. 'The Last Airbender' was the failure of a movie that was made loosely based on the aforementioned series.
That said, this is a great anime so far that promises to be even greater as it progresses. The animation is something that you would expect from a 'true' anime that was made in japan, china or whatever. The creators of this anime has broken the mold that has been set by previous american adaptations of anime. If you read a review criticizing the setting of the series, ignore it. It shows that the world has progressed beyond that which it was and is dealt with early on.