When does Samantha Who? return?

Samantha Who? is an American television sitcom that originally aired on ABC from October 15, 2007, to July 23, 2009. The show centered on Samantha Newly (Christina Applegate), a vice president of a real estate firm who develops retrograde amnesia after a hit and run accident. Although highly rated during its first season, the sitcom lost momentum and viewers throughout its second season, and ABC canceled the show in May 2009.