 | The Big Bang Theory 6x18 "The Contractual Obligation Implementation" - Leonard, Sheldon and Wolowitz speak to junior high girls about careers in science. Meanwhile, Koothrappali plans a date with Lucy, on THE BIG BANG THEORY, Thursday, March 7th on CBS. Subscribe to televisionpromos on YouTube for more The Big Bang Theory season 6 promos in HD!Official website: http://www.cbs.com/shows/big_bang_theory/Official Facebook Page: https://www.facebook.com/TheBigBangTheory/Official Twitter: https://twitter.com/bigbang_cbs/The Big Bang Theory 6x18 Promo/Preview "The Contractual Obligation Implementation"The Big Bang Theory Season 6 Episode 18 PromoThe Big Bang Theory S06E18 Promo | From:televisionpromos Views:312  20ratings |
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