Season 1
13 episodes
January 24, 2008 - April 17, 2008
Season 2
13 episodes
February 10, 2009 - April 28, 2009
Season 3
13 episodes
February 16, 2010 - May 11, 2010
Season 4
13 episodes
February 15, 2011 - May 10, 2011
Season 5
13 episodes
February 28, 2012 - May 22, 2012
Season 6
13 episodes
January 7, 2013 - April 15, 2013
Season 7
18 episodes
September 30, 2013 - April 7, 2014
Season 8
18 episodes
October 6, 2014 - March 30, 2015
Season 9
18 episodes
October 5, 2015 - March 21, 2016
Season 10
18 episodes
October 10, 2016 - March 20, 2017
Season 11
18 episodes
September 25, 2017 - March 19, 2018
Season 12
18 episodes
September 24, 2018 - March 4, 2019
Season 13
18 episodes
September 16, 2019 - March 2, 2020
Season 14
11 episodes
January 4, 2021 - March 15, 2021
Season 15
24 episodes
September 13, 2021 - April 11, 2022
Season 16
24 episodes
September 12, 2022 - April 10, 2023
Season 17
24 episodes
October 2, 2023 - April 8, 2024
Season 18
8 episodes
September 30, 2024 - November 25, 2024
