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    The Big Bang Theory Season 1 Episode 5

    The Big Bang Theory Season 1 Episode 5

    Fearing he’s wasting his time on Penny, Leonard ends up making a connection with Leslie.

    Episode Title: The Hamburger Postulate

    Air Date: 2007-10-22

    Year:

    The Big Bang Theory Season 1 Episode 5
    The Big Bang Theory Season 1 Episode 5