January 12, 2010
Episode 1 of Season 4 premiered on January 12, 2010
January 31, 2010
Episode 2 of Season 4 premiered on January 31, 2010
February 18, 2010
Episode 3 of Season 4 premiered on February 18, 2010
March 2, 2010
Episode 4 of Season 4 premiered on March 2, 2010
March 19, 2010
Episode 5 of Season 4 premiered on March 19, 2010
April 3, 2010
Episode 6 of Season 4 premiered on April 3, 2010
April 20, 2010
Episode 7 of Season 4 premiered on April 20, 2010
May 4, 2010
Episode 8 of Season 4 premiered on May 4, 2010
May 22, 2010
Episode 9 of Season 4 premiered on May 22, 2010
June 4, 2010
Episode 10 of Season 4 premiered on June 4, 2010
June 23, 2010
Episode 11 of Season 4 premiered on June 23, 2010
July 15, 2010
Episode 12 of Season 4 premiered on July 15, 2010
August 5, 2010
Episode 13 of Season 4 premiered on August 5, 2010
August 20, 2010
Episode 14 of Season 4 premiered on August 20, 2010
September 9, 2010
Episode 15 of Season 4 premiered on September 9, 2010
September 29, 2010
Episode 16 of Season 4 premiered on September 29, 2010
October 12, 2010
Episode 17 of Season 4 premiered on October 12, 2010
October 27, 2010
Episode 18 of Season 4 premiered on October 27, 2010
November 10, 2010
Episode 19 of Season 4 premiered on November 10, 2010
November 27, 2010
Episode 20 of Season 4 premiered on November 27, 2010
December 17, 2010
Episode 21 of Season 4 premiered on December 17, 2010