Avatar: The Last Airbender (season 2)
Between 23 January 2007 and 11 September 2007, Nickelodeon released five DVD sets for the season: four sets had five episodes each, and a fifth DVD collection of all 20 episodes. All DVDs were encoded in Region 1 (USA). In the UK, only the season box set was released without being released in four volumes first.  The box set was released on 20 July 2009.