with 16 episodes premiered on April 20, 2007

with 16 episodes premiered on September 7, 2007

with 16 episodes premiered on March 7, 2008

with 16 episodes premiered on September 5, 2008

with 20 episodes premiered on March 6, 2009

with 20 episodes premiered on October 16, 2009

with 20 episodes premiered on May 14, 2010

with 20 episodes premiered on December 17, 2010

with 20 episodes premiered on September 9, 2011

with 20 episodes premiered on April 13, 2012

with 18 episodes premiered on November 29, 2012

with 18 episodes premiered on July 18, 2013

with 16 episodes premiered on March 27, 2014

with 17 episodes premiered on August 10, 2015

with 20 episodes premiered on October 31, 2016

with 16 episodes premiered on December 4, 2017

with 12 episodes premiered on February 8, 2019