The Big Bang Theory

Season 5, Episode 18  |  February 23rd, 2012

The Werewolf Transformation

­Sheldon's routine world is turned upside down when he learns that his longtime barber passed away, so he tries to act like a hippy to match his new shaggy hairstyle. Meanwhile, Wolowitz is sent to Houston for the grueling NASA training program, and he shares his horrific stories with Bernadette via Skype.