The Big Bang Theory S12E24 · Unraveling the Mystery: A Big Bang Farewell

The Big Bang Theory

Season 12 · Episode 24 · Unraveling the Mystery: A Big Bang Farewell · 23 min

Johnny Galecki and Kaley Cuoco will lead fans on a trip down memory lane, sharing some of the best-kept backstage secrets and personal memories from the past 12 years.