September 12, 2011 • 23m
Episode 1 of Season 4 premiered on September 12, 2011
September 19, 2011 • 23m
Episode 2 of Season 4 premiered on September 19, 2011
September 26, 2011 • 23m
Episode 3 of Season 4 premiered on September 26, 2011
October 3, 2011 • 23m
Episode 4 of Season 4 premiered on October 3, 2011
October 10, 2011 • 23m
Episode 5 of Season 4 premiered on October 10, 2011
October 17, 2011 • 23m
Episode 6 of Season 4 premiered on October 17, 2011
October 24, 2011 • 23m
Episode 7 of Season 4 premiered on October 24, 2011
October 31, 2011 • 23m
Episode 8 of Season 4 premiered on October 31, 2011
November 7, 2011 • 23m
Episode 9 of Season 4 premiered on November 7, 2011
November 14, 2011 • 23m
Episode 10 of Season 4 premiered on November 14, 2011
November 21, 2011 • 23m
Episode 11 of Season 4 premiered on November 21, 2011
January 16, 2012 • 23m
Episode 12 of Season 4 premiered on January 16, 2012
January 23, 2012 • 23m
Episode 13 of Season 4 premiered on January 23, 2012
January 30, 2012 • 23m
Episode 14 of Season 4 premiered on January 30, 2012
February 6, 2012 • 23m
Episode 15 of Season 4 premiered on February 6, 2012
February 13, 2012 • 23m
Episode 16 of Season 4 premiered on February 13, 2012
February 20, 2012 • 23m
Episode 17 of Season 4 premiered on February 20, 2012
February 27, 2012 • 23m
Episode 18 of Season 4 premiered on February 27, 2012
March 5, 2012 • 23m
Episode 19 of Season 4 premiered on March 5, 2012
March 12, 2012 • 23m
Episode 20 of Season 4 premiered on March 12, 2012