TV Rating: TV-PG (TV-G In Some Episodes) TV Rating (MB Network): YC-PG Seasons: 4 Episodes: 204 Season 1: February 12, 2005-May 2, 2008 Season 2: September 1, 2008-February 4, 2011 Season 3: April 1, 2011-July 13, 2013 Season 4: July 12, 2014-November 6, 2015 Channels (International): Cartoon Network (All Countries), Nickelodeon (All Countries), Hub Network/Discovery Family (Season 3-4) Channels (UK): Pop (UK)
