The New Adventures of Old Christine Season 5 Episode 16 Subway, Somehow

Christine gets lost on the subway and ends up in New York City instead of Connecticut. While she's there, she runs into her ex-boyfriend, Burton, who's in town for a conference. They hit it off again and Christine considers getting back together with him. Meanwhile, at home, Richard tries to help Matthew kick his addiction to energy drinks. Old Christine enlists Barb's help in organizing a school event, but when they start bickering over details, the rest of the PTA turns on them. Ultimately, Christine decides to stick with New York rather than go back to her old life.