Season 1
12 episodes · Jan 15, 2006
Season 2
10 episodes · Mar 20, 2007
Season 3
12 episodes · Jan 22, 2008
Season 4
24 episodes · Apr 24, 2009
Season 5
12 episodes · Apr 13, 2010
Season 6
10 episodes · Nov 6, 2010
Season 7
13 episodes · Apr 20, 2011
Season 8
14 episodes · Apr 25, 2012
Season 9
24 episodes · Apr 3, 2013
Season 10
20 episodes · Apr 16, 2014
Season 11
9 episodes · Jul 12, 2018
Season 12
10 episodes · Jul 18, 2019
Season 13
6 episodes · Feb 25, 2020
Season 14
10 episodes · Feb 23, 2021
Season 15
10 episodes · Feb 10, 2022
Season 17
10 episodes · Feb 16, 2023
Season 18
20 episodes · Feb 8, 2024
Season 19
12 episodes · Sep 14, 2024
Season 20
24 episodes · Jan 16, 2025
Season 21
14 episodes · Nov 7, 2025
