Premise: ``Old Christine'' (Julia Louis-Dreyfus) is a divorced mom who has a handle on her career and motherhood -- and a pretty good relationship with her ex-husband -- until he introduces his new girlfriend, a younger woman, also named Christine. Old Christine lives with her son and her brother, and runs a gym, and her life is a constant struggle to keep up with everyone else.
S01, E13 (First Aired: May. 22, 2006)
After a chance meeting, Christine finds she still has feelings for an old boyfriend (Matthew Letscher).
S02, E01 (First Aired: Sep. 18, 2006)
Since New Christine broke up with Richard, he's been spending a lot of time at Old Christine's house, leading Ritchie to believe that his parents are back together.