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.
S05, E05 (First Aired: Oct. 21, 2009)
Christine begins a complicated relationship with the doctor (Eric McCormack) who shares Matthew's office space.
S05, E06 (First Aired: Nov. 4, 2009)
The most popular girl in school asks Ritchie to a dance; Richard and Matthew try to force an elderly tenant out of an apartment they want to rent.