The Big Bang Theory 12×10 Promo “The VCR Illumination” Young Sheldon Crossover

The Big Bang Theory 12×10 “The VCR Illumination” Season 12 Episode 10 Promo – Sheldon 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, on THE BIG BANG THEORY, Thursday, December 6th on CBS.