Season 1, Episode 17 The Tangerine Factor

First Aired: May 19, 2008

In the first-season finale, Leonard asks Penny out on a date after she breaks up with her boyfriend. To prepare for the big night, Leonard practices the date the day before with the guys.

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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)

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