January 7, 2007
Episode 1 of Season 12 premiered on January 7, 2007
January 21, 2007
Episode 2 of Season 12 premiered on January 21, 2007
February 4, 2007
Episode 3 of Season 12 premiered on February 4, 2007
February 18, 2007
Episode 4 of Season 12 premiered on February 18, 2007
February 25, 2007
Episode 5 of Season 12 premiered on February 25, 2007
March 4, 2007
Episode 6 of Season 12 premiered on March 4, 2007
March 25, 2007
Episode 7 of Season 12 premiered on March 25, 2007
April 1, 2007
Episode 8 of Season 12 premiered on April 1, 2007
April 9, 2007
Episode 9 of Season 12 premiered on April 9, 2007
April 15, 2007
Episode 10 of Season 12 premiered on April 15, 2007
April 29, 2007
Episode 11 of Season 12 premiered on April 29, 2007
May 13, 2007
Episode 12 of Season 12 premiered on May 13, 2007
May 20, 2007
Episode 13 of Season 12 premiered on May 20, 2007
June 3, 2007
Episode 14 of Season 12 premiered on June 3, 2007
June 7, 2007
Episode 15 of Season 12 premiered on June 7, 2007
June 17, 2007
Episode 16 of Season 12 premiered on June 17, 2007
July 1, 2007
Episode 17 of Season 12 premiered on July 1, 2007
July 8, 2007
Episode 18 of Season 12 premiered on July 8, 2007
August 5, 2007
Episode 19 of Season 12 premiered on August 5, 2007
August 12, 2007
Episode 20 of Season 12 premiered on August 12, 2007
September 2, 2007
Episode 21 of Season 12 premiered on September 2, 2007
September 9, 2007
Episode 22 of Season 12 premiered on September 9, 2007
September 16, 2007
Episode 23 of Season 12 premiered on September 16, 2007
September 30, 2007
Episode 24 of Season 12 premiered on September 30, 2007
October 3, 2007
Episode 25 of Season 12 premiered on October 3, 2007
October 7, 2007
Episode 26 of Season 12 premiered on October 7, 2007
October 21, 2007
Episode 27 of Season 12 premiered on October 21, 2007
November 4, 2007
Episode 28 of Season 12 premiered on November 4, 2007
November 11, 2007
Episode 29 of Season 12 premiered on November 11, 2007
November 18, 2007
Episode 30 of Season 12 premiered on November 18, 2007
December 16, 2007
Episode 31 of Season 12 premiered on December 16, 2007
December 22, 2007
Episode 32 of Season 12 premiered on December 22, 2007