Excitation - [s11e18] The Gates

: Once he realizes it's actually real, he desperately tries to find Gates. However, he ends up being the one pranked when the others send him to the wrong hotel. Bernadette’s "Mommy Brain"

: Penny is assigned to be Bill Gates' guide during his visit to her office. Despite relentless begging from Leonard, Howard, and Raj, she refuses to let them tag along to a professional work function. [S11E18] The Gates Excitation

: After accidentally seeing Gates' itinerary on Penny’s phone, Leonard leads Howard and Raj to a hotel stakeout. Leonard eventually meets Gates but ruins the moment—and his own tie—by crying from excitement. : Once he realizes it's actually real, he

: This episode is one of the rare times Sheldon becomes the victim of a successful prank because of his own overthinking. Despite relentless begging from Leonard, Howard, and Raj,

: Because it is April 1st, Sheldon is convinced that the entire Bill Gates visit is an elaborate April Fool's prank played by Penny.

Bernadette struggles to talk about anything other than her children, prompting Amy to help her reconnect with her adult, scientist self. Original Air Date : March 29, 2018. Guest Star : Bill Gates as himself.