About this showing of The Big Bang Theory
Penny's ex, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Raj attempts to mend things with his ex-fiancée.
Previously on TV
The Big Bang Theory
The Propagation Proposition
Previously shown on TLC on Sat 12 Sep 2026 at 12:00.
This showing has ended
This showing was on TLC at 12:00 on Sat 12 Sep 2026. See future airings below or open the main programme page for the latest TV times.
Airing details
ChannelTLC
StartsSat 12 Sep 2026, 12:00
EndsSat 12 Sep 2026, 12:30
Episode / edition: The Propagation Proposition
Next showing of The Big Bang Theory
The next currently listed showing is Sun 13 Sep 2026, 11:00 on TLC.
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