The Big Bang Theory 10x23 Promo/Preview "The Gyroscopic Collapse" The Big Bang Theory Season 10 Episode 23 Promo The Big Bang Theory 10x23 Promo "The Gyroscopic Collapse" (HD) The Big Bang Theory 10. sezon 23. bölüm fragmanı » Starring: Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg