The Big Bang Theory
Season 11·EPISODE 04
The Explosion Implosion
WatchedS11 · E04
As Howard worries about fatherhood, he and Sheldon bond when they jointly assemble a model rocket. Meanwhile, Penny bonds with Leonard's mother, Beverly, much to his concern.
AIR DATEOct 16, 2017Original broadcast date
RUNTIME21m21 minutes
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