E4 The Big Bang Theory (R) (T) Fri 23:20

The Big Bang Theory (R) (T)

Penny is forced to revise for a work assessment during the girls' trip to Las Vegas, and Amy and Bernadette accuse her of spoiling their fun. Meanwhile, the guys try to invent something of scientific importance - but only come up with new ways to procrastinate. Comedy, starring Johnny Galecki, Jim Parsons and Kaley Cuoco.

S08 E05