The Big Bang Theory 10x12 Promo/Preview "The Holiday Summation" The Big Bang Theory Season 10 Episode 12 Promo The Big Bang Theory 10x12 Promo "The Holiday Summation" (HD) The Big Bang Theory 10. sezon 12. bölüm fragmanı » Starring: Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg