January 7, 2009
Episode 1 of Season 18 premiered on January 7, 2009
January 14, 2009
Episode 2 of Season 18 premiered on January 14, 2009
January 21, 2009
Episode 3 of Season 18 premiered on January 21, 2009
January 28, 2009
Episode 4 of Season 18 premiered on January 28, 2009
February 4, 2009
Episode 5 of Season 18 premiered on February 4, 2009
February 11, 2009
Episode 6 of Season 18 premiered on February 11, 2009
February 18, 2009
Episode 7 of Season 18 premiered on February 18, 2009
February 25, 2009
Episode 8 of Season 18 premiered on February 25, 2009
March 4, 2009
Episode 9 of Season 18 premiered on March 4, 2009
March 11, 2009
Episode 10 of Season 18 premiered on March 11, 2009
March 18, 2009
Episode 11 of Season 18 premiered on March 18, 2009
March 25, 2009
Episode 12 of Season 18 premiered on March 25, 2009
April 1, 2009
Episode 13 of Season 18 premiered on April 1, 2009
April 8, 2009
Episode 14 of Season 18 premiered on April 8, 2009
April 15, 2009
Episode 15 of Season 18 premiered on April 15, 2009
April 22, 2009
Episode 16 of Season 18 premiered on April 22, 2009
April 29, 2009
Episode 17 of Season 18 premiered on April 29, 2009
May 6, 2009
Episode 18 of Season 18 premiered on May 6, 2009
May 13, 2009
Episode 19 of Season 18 premiered on May 13, 2009
May 27, 2009
Episode 20 of Season 18 premiered on May 27, 2009
June 3, 2009
Episode 21 of Season 18 premiered on June 3, 2009
June 17, 2009
Episode 22 of Season 18 premiered on June 17, 2009
June 24, 2009
Episode 23 of Season 18 premiered on June 24, 2009
July 1, 2009
Episode 24 of Season 18 premiered on July 1, 2009
July 8, 2009
Episode 25 of Season 18 premiered on July 8, 2009
September 2, 2009
Episode 26 of Season 18 premiered on September 2, 2009
September 9, 2009
Episode 27 of Season 18 premiered on September 9, 2009
September 16, 2009
Episode 28 of Season 18 premiered on September 16, 2009
September 23, 2009
Episode 29 of Season 18 premiered on September 23, 2009
September 30, 2009
Episode 30 of Season 18 premiered on September 30, 2009
October 7, 2009
Episode 31 of Season 18 premiered on October 7, 2009
October 14, 2009
Episode 32 of Season 18 premiered on October 14, 2009
October 21, 2009
Episode 33 of Season 18 premiered on October 21, 2009
October 28, 2009
Episode 34 of Season 18 premiered on October 28, 2009
November 4, 2009
Episode 35 of Season 18 premiered on November 4, 2009
November 11, 2009
Episode 36 of Season 18 premiered on November 11, 2009
November 18, 2009
Episode 37 of Season 18 premiered on November 18, 2009
November 25, 2009
Episode 38 of Season 18 premiered on November 25, 2009
December 2, 2009
Episode 39 of Season 18 premiered on December 2, 2009
December 9, 2009
Episode 40 of Season 18 premiered on December 9, 2009
December 16, 2009
Episode 41 of Season 18 premiered on December 16, 2009