: This episode is one of the rare times Sheldon becomes the victim of a successful prank because of his own overthinking.

: 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.

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

You can find more detailed recaps on the Big Bang Theory Wiki or watch the episode on platforms like Apple TV or TBS . The Big Bang Theory - The Gates Excitation S11E18 [1080p] [S11E18] The Gates Excitation

: When Penny later mentions that Gates remembered a "crying fan" with a ruined tie, Leonard has to pretend he was never there to avoid getting in trouble with her. The "April Fool's" Prank

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.

While Stuart watches the kids, Bernadette and Amy go out for lunch. : This episode is one of the rare

In of The Big Bang Theory , the gang goes into a frenzy when Bill Gates visits Penny's pharmaceutical company. Episode Plot Guide The Main Quest: Meeting Bill Gates