Leonard is devastated by the new friendly relation developing between his mother and Penny. Meanwhile Sheldon takes a detour with Raj and Howard to explore the old belongings of Howard's Science Models.
Did You Know?
Amy appears in just two scenes in this episode. See more
While Sheldon is holding a large box containing a model rocket he asks Howard, "You have a replica Saturn V?" There is already a Saturn V rocket sitting on the table he is facing. See more
[as the doctor's office
It feels like it wasn't that long ago we were here doing this for Halley.
'Cause it wasn't. Which reminds me, before we leave, let's get you a vasectomy.
Oh, that's sweet, but today is all about you.
References Star Trek
History of Everything (Instrumental version)
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Instrumental version of series theme song played over the closing credits] See more