A VHS tape from Sheldon's past inspires him and Amy not to give up when they're still feeling down about their theory being disproven.

Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Iain Armitage, Christine Baranski, Lance Barber, Montana Jordan, Kurt Scholler