January 2, 2011
Episode 1 of Season 18 premiered on January 2, 2011
January 2, 2011
Episode 2 of Season 18 premiered on January 2, 2011
January 9, 2011
Episode 3 of Season 18 premiered on January 9, 2011
January 16, 2011
Episode 4 of Season 18 premiered on January 16, 2011
January 23, 2011
Episode 5 of Season 18 premiered on January 23, 2011
January 30, 2011
Episode 6 of Season 18 premiered on January 30, 2011
February 13, 2011
Episode 7 of Season 18 premiered on February 13, 2011
February 20, 2011
Episode 8 of Season 18 premiered on February 20, 2011
February 27, 2011
Episode 9 of Season 18 premiered on February 27, 2011
March 13, 2011
Episode 10 of Season 18 premiered on March 13, 2011
March 27, 2011
Episode 11 of Season 18 premiered on March 27, 2011
April 3, 2011
Episode 12 of Season 18 premiered on April 3, 2011
April 10, 2011
Episode 13 of Season 18 premiered on April 10, 2011
April 17, 2011
Episode 14 of Season 18 premiered on April 17, 2011
April 22, 2011
Episode 15 of Season 18 premiered on April 22, 2011
May 1, 2011
Episode 16 of Season 18 premiered on May 1, 2011
May 8, 2011
Episode 17 of Season 18 premiered on May 8, 2011
May 15, 2011
Episode 18 of Season 18 premiered on May 15, 2011
May 22, 2011
Episode 19 of Season 18 premiered on May 22, 2011
May 29, 2011
Episode 20 of Season 18 premiered on May 29, 2011
May 29, 2011
Episode 21 of Season 18 premiered on May 29, 2011
June 5, 2011
Episode 22 of Season 18 premiered on June 5, 2011
June 12, 2011
Episode 23 of Season 18 premiered on June 12, 2011
June 26, 2011
Episode 24 of Season 18 premiered on June 26, 2011
July 3, 2011
Episode 25 of Season 18 premiered on July 3, 2011
August 7, 2011
Episode 26 of Season 18 premiered on August 7, 2011
August 28, 2011
Episode 27 of Season 18 premiered on August 28, 2011
September 11, 2011
Episode 28 of Season 18 premiered on September 11, 2011
September 18, 2011
Episode 29 of Season 18 premiered on September 18, 2011
September 25, 2011
Episode 30 of Season 18 premiered on September 25, 2011
October 9, 2011
Episode 31 of Season 18 premiered on October 9, 2011
October 16, 2011
Episode 32 of Season 18 premiered on October 16, 2011
October 23, 2011
Episode 33 of Season 18 premiered on October 23, 2011
October 30, 2011
Episode 34 of Season 18 premiered on October 30, 2011
November 6, 2011
Episode 35 of Season 18 premiered on November 6, 2011
November 13, 2011
Episode 36 of Season 18 premiered on November 13, 2011
December 4, 2011
Episode 37 of Season 18 premiered on December 4, 2011
December 4, 2011
Episode 38 of Season 18 premiered on December 4, 2011
December 11, 2011
Episode 39 of Season 18 premiered on December 11, 2011
December 18, 2011
Episode 40 of Season 18 premiered on December 18, 2011
December 18, 2011
Episode 41 of Season 18 premiered on December 18, 2011
December 25, 2011
Episode 42 of Season 18 premiered on December 25, 2011