While Stuart watches the kids, Bernadette and Amy go out for lunch.
: 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. [S11E18] The Gates Excitation
: 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" While Stuart watches the kids, Bernadette and Amy
: 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 : Once he realizes it's actually real, he
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.
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]