Watch The Big Bang Theory Season 4 Episode 9 online Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.
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Watch The Big Bang Theory Season 4 Episode 8 online While the guys camp in line for a screening, Penny and Bernadette invite Amy to her first slumber party.
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Watch The Big Bang Theory Season 4 Episode 4 online An embarrassing secret of Wolowitz’s comes to light, while Sheldon and Raj have a small war at work.
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Watch The Big Bang Theory Season 4 Episode 3 online The guys are concerned as Sheldon searches for an alternative to human companionship.
Watch The Big Bang Theory Season 4 Episode 2 online
Watch The Big Bang Theory Season 4 Episode 2 online Sheldon realizes he won’t live long enough to download his consciousness into a robot body, and attempts to extend his lifespan.