January 10, 2012
Episode 1 of Season 13 premiered on January 10, 2012
January 17, 2012
Episode 2 of Season 13 premiered on January 17, 2012
January 24, 2012
Episode 3 of Season 13 premiered on January 24, 2012
January 31, 2012
Episode 4 of Season 13 premiered on January 31, 2012
February 7, 2012
Episode 5 of Season 13 premiered on February 7, 2012
February 14, 2012
Episode 6 of Season 13 premiered on February 14, 2012
February 28, 2012
Episode 7 of Season 13 premiered on February 28, 2012
March 6, 2012
Episode 8 of Season 13 premiered on March 6, 2012
March 13, 2012
Episode 9 of Season 13 premiered on March 13, 2012
March 20, 2012
Episode 10 of Season 13 premiered on March 20, 2012
March 27, 2012
Episode 11 of Season 13 premiered on March 27, 2012
April 17, 2012
Episode 12 of Season 13 premiered on April 17, 2012
April 24, 2012
Episode 13 of Season 13 premiered on April 24, 2012
May 8, 2012
Episode 14 of Season 13 premiered on May 8, 2012
May 15, 2012
Episode 15 of Season 13 premiered on May 15, 2012
May 22, 2012
Episode 16 of Season 13 premiered on May 22, 2012
May 29, 2012
Episode 17 of Season 13 premiered on May 29, 2012
June 5, 2012
Episode 18 of Season 13 premiered on June 5, 2012
June 26, 2012
Episode 19 of Season 13 premiered on June 26, 2012
July 3, 2012
Episode 20 of Season 13 premiered on July 3, 2012
July 10, 2012
Episode 21 of Season 13 premiered on July 10, 2012
July 17, 2012
Episode 22 of Season 13 premiered on July 17, 2012
July 24, 2012
Episode 23 of Season 13 premiered on July 24, 2012
September 4, 2012
Episode 24 of Season 13 premiered on September 4, 2012
September 11, 2012
Episode 25 of Season 13 premiered on September 11, 2012
September 18, 2012
Episode 26 of Season 13 premiered on September 18, 2012
September 25, 2012
Episode 27 of Season 13 premiered on September 25, 2012
October 2, 2012
Episode 28 of Season 13 premiered on October 2, 2012
October 9, 2012
Episode 29 of Season 13 premiered on October 9, 2012
October 16, 2012
Episode 30 of Season 13 premiered on October 16, 2012
October 23, 2012
Episode 31 of Season 13 premiered on October 23, 2012
October 30, 2012
Episode 32 of Season 13 premiered on October 30, 2012
November 6, 2012
Episode 33 of Season 13 premiered on November 6, 2012
November 13, 2012
Episode 34 of Season 13 premiered on November 13, 2012
November 20, 2012
Episode 35 of Season 13 premiered on November 20, 2012
November 27, 2012
Episode 36 of Season 13 premiered on November 27, 2012
December 4, 2012
Episode 37 of Season 13 premiered on December 4, 2012
December 11, 2012
Episode 38 of Season 13 premiered on December 11, 2012
December 18, 2012
Episode 39 of Season 13 premiered on December 18, 2012