February 19, 2015
Episode 1 of Season 18 premiered on February 19, 2015
February 26, 2015
Episode 2 of Season 18 premiered on February 26, 2015
March 5, 2015
Episode 3 of Season 18 premiered on March 5, 2015
March 12, 2015
Episode 4 of Season 18 premiered on March 12, 2015
March 19, 2015
Episode 5 of Season 18 premiered on March 19, 2015
March 26, 2015
Episode 6 of Season 18 premiered on March 26, 2015
April 2, 2015
Episode 7 of Season 18 premiered on April 2, 2015
April 16, 2015
Episode 8 of Season 18 premiered on April 16, 2015
April 23, 2015
Episode 9 of Season 18 premiered on April 23, 2015
April 30, 2015
Episode 10 of Season 18 premiered on April 30, 2015
May 7, 2015
Episode 11 of Season 18 premiered on May 7, 2015
May 31, 2015
Episode 12 of Season 18 premiered on May 31, 2015
June 11, 2015
Episode 13 of Season 18 premiered on June 11, 2015
July 2, 2015
Episode 14 of Season 18 premiered on July 2, 2015
July 16, 2015
Episode 15 of Season 18 premiered on July 16, 2015
September 10, 2015
Episode 16 of Season 18 premiered on September 10, 2015
September 17, 2015
Episode 17 of Season 18 premiered on September 17, 2015
September 24, 2015
Episode 18 of Season 18 premiered on September 24, 2015
October 1, 2015
Episode 19 of Season 18 premiered on October 1, 2015
October 8, 2015
Episode 20 of Season 18 premiered on October 8, 2015
October 15, 2015
Episode 21 of Season 18 premiered on October 15, 2015
October 29, 2015
Episode 22 of Season 18 premiered on October 29, 2015
November 5, 2015
Episode 23 of Season 18 premiered on November 5, 2015
November 12, 2015
Episode 24 of Season 18 premiered on November 12, 2015
December 10, 2015
Episode 25 of Season 18 premiered on December 10, 2015
December 17, 2015
Episode 26 of Season 18 premiered on December 17, 2015