The Big Bang Theory “Bill Gates Guest Stars” Preview

PHILANTHROPIST BILL GATES MAKES AN APPEARANCE – Penny gets the opportunity to host Bill Gates at work when his company wants to partner with her pharmaceutical company. Also, Leonard, Koothrappali and Wolowitz do everything in their power to meet him, while Sheldon thinks he is the victim of an April Fools prank, on THE BIG BANG THEORY, Thursday, March 29th on CBS.