Production

Avatar: The Last Airbender was co-created and produced by Michael Dante DiMartino and Bryan Konietzko at Nickelodeon Animation Studios in Burbank, California. Animation work was done by the Korean animation studio DR Movie. According to Bryan Konietzko, the program was conceived in the spring of 2001 when he took an old sketch of a balding, middle-aged man and re-imagined the character as a child. Konietzko drew the character herding bison in the sky, and showed the sketch to Mike DiMartino. At the time, DiMartino was studying a documentary about explorers trapped in the South Pole.

Konietzko described their early development of the concept:
“ We thought, "There's an air guy along with these water people trapped in a snowy wasteland... and maybe some fire people are pressing down on them..." ”

The co-creators successfully pitched the idea to Nickelodeon VP and executive producer Eric Coleman just two weeks later.

The show was first revealed to the public in a teaser reel at Comic-Con 2004, and aired February 21, 2005. In the United States, the first two episodes of the series were shown together in a one-hour premiere event. A second twenty-episode season ran from March 17, 2006 through December 1. A third and final season, beginning September 21, 2007, featured twenty-one episodes rather than the usual twenty. The final four episodes were packaged as a two-hour movie.