The Big Bang Theory

The Big Bang Theory

The Propagation Proposition (12x12)


: 10, 2019

Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu.

  • : 2007
  • : 279
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  • CBS
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