Source: http://the-big-bang-theory.com/
CBS has announced the details of episode 2.15, "The Maternal Capacitance", set to air next week (Feb 9th). Mamma Mia star Christine Baranski will appear as Leonard’s mother.
"The Maternal Capacitance" – A disastrous visit from Mrs. Hofstadter brings Leonard and Penny closer together, on THE BIG BANG THEORY, Monday, Feb. 9 (8:00-8:30 PM, ET/PT) on the CBS Television Network.
