Episode 11 – The Maternal Congruence (311)
A visit from Leonard’s mother delights Sheldon and horrifies Leonard. Leonard’s mother reveals that Leonard’s parents are going to divorce due to Leonard’s father’s affair with a waitress.
Directed by Mark Cendrowski.
Written by Chuck Lorre, Bill Prady & David Goetsch based on a story by Steven Molaro, Richard Rosenstock & Maria Ferrari.
Originally aired on December 14, 2009.
Watched These from The Big Bang Theory?
- Season 3 Episode 10 – The Gorilla Experiment (310)
- Season 3 Episode 9 – The Vengeance Formulation (309)
- Season 3 Episode 8 – The Adhesive Duck Deficiency (308)
- Season 3 Episode 3 – The Gothowitz Deviation (303)
- Season 2 Episode 15 – The Maternal Capacitance (215)


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