Watch Big Bang Theory Season 2 Episode 22. Hello there Big Bang fans, welcome to yet another Big Bang episode. The latest for our favorite tv episode is the Big Bang Theory Season 2 Episode 22 entitled as the The Classified Materials Turbulence. In this episode, Leonard’s “problem” rears its nerdy little head again when Stuart (Kevin Sussman) returns to take Penny out on a date. But the date doesn’t go well and Leonard comes to possess a piece of information that makes him very happy. Watch Big Bang Theory The Classified Materials Turbulence Online streaming free.