Episode Guide

Season 1 (2011 - 2012)
The first season premiered in the US on May 3, 2011 and ended March 13, 2012 almost a year later. The world premier of the show was on May 2, 2011 in the UK with the episode "The Mystery".

Season 2 (2012 - 2013)
The show was renewed for a second season two months before the show had premiered in the US. The season began on August 7, 2012 and ended on December 3, 2013, over a year later.

Season 3 (2014 - 2015)
A third season was green-lit on October 5, 2012. It premiered on June 5, 2014 in the US, and premiered September 2014 in the UK and ended on August 6, 2015, a little over a year later.

Season 4 (2015 - 2016)
A fourth season was green-lit on June 2, 2014. It premiered on July 7, 2015 in the US and ended on October 27, 2016, over a year later.

Season 5 (2016 - 2017)
A fifth season was green-lit on June 2, 2014. It premiered on September 1, 2016 in the US during season four's run.

Season 6 (2017)
A sixth season was green-lit on June 22, 2016. Unlike the first five seasons, it will have 22 episodes (44 segments). This is also the series' final season.