Season 2, Episode 22 The Classified Materials Turbulence
First Aired: May 4, 2009
While on a date with Stuart, Penny makes an unexpected discovery regarding Leonard; and Wolowitz asks for his friends' help on his NASA project when he uncovers a design flaw.
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- Premiered: September 24, 2007
- Rating: TV-PG
- Premise: Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the… (more)