The Big Bang Theory 10x20 Promo/Preview "The Recollection Dissipation" The Big Bang Theory Season 10 Episode 20 Promo The Big Bang Theory 10x20 Promo "The Recollection Dissipation" (HD) The Big Bang Theory 10. sezon 20. bölüm fragmanı » Starring: Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg