Season 7 Episode 21 The Anything Can Happen Recurrence

The Big Bang Theory Season 7 Episode 21 "The Anything Can Happen Recurrence" Promo

When Sheldon tries to be spontaneous, it leads to unexpected friction between Penny, Amy and Bernadette in The Big Bang Theory Season 7 Episode 21 "The Anything Can Happen Recurrence" airing next Thursday on CBS.