The Big Bang Theory - Season 12 Episode 10
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12x10 | The VCR Illumination
December 7,2018, 02:00AMSheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon’s past inspires him not to give up. Also, Bernadette turns into a pageant mom when she tries to help Wolowitz ace his Magic Castle audition.