“The Big Bang Theory” (8 p.m., CBS): On the Season 5 finale of “The Big Bang
“The Big Bang Theory” (8 p.m., CBS): On the Season 5 finale of “The Big Bang Theory,” Howard (Simon Helberg) is determined to marry Bernadette (Melissa Rauch) and still make his long-anticipated trip into space. That sends the gang scrambling to arrange a wedding before liftoff.
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