Raj and Lucy have their first date meeting in a library and texting to each other. The guys have to promote science careers for women at Howard's old middle school, while the girls go to Disneyland and get made up as Disney Princesses.
After losing a bet to Jerry, George agrees to pick him and Elaine up at Kennedy Airport after a trip.
When Jerry runs into a woman that he once considered dating, he is happy to learn that Maria is no longer with her boyfriend.
Hearing Star Trek sex games between Leonard and Priya sends Raj to live with Sheldon. Bernadette's earning her Ph.D makes the guys mock Wolowitz for not having one even more.
Amy recognizes a dinner invitation to be a chance for Bernadette to spy on Leonard and Priya for Penny. Meanwhile, a lonely Raj considers taking experimental medication to cure himself of his inability to talk to women while sober, and Sheldon devises three-person chess.
Guests: Evangeline Lilly, Jackson Browne
Sheldon is aghast to learn the new chair in Penny's apartment was someone else's garbage. Leonard and Priya try a long-distance relationship.
Guests: Jennifer Aniston, Bill Burr
Guests: Rosario Dawson, Joel Edgerton, Bahamas
SPEED DATING (HALLMARK): After stumbling into a speed dating session, a contestant s girlfriend is in for the worst date of her life when an attractive woman wants to lock-in with her man. Co-host: Jessimae Peluso. CUPCAKES: Our contestant is unhappy with a cupcake focus group, and after being told not to eat any of the cupcakes, he decides to bite off more than he can chew, literally. Co-host: Penn Jillette.
Guests: Rebecca Romijn, Robert Patrick, Mo Mandel
Mrs. Wolowitz ends up in the hospital after Howard tells her he's marrying Bernadette. While there, Leonard stresses over Penny and Priya warming up to one another.
With Kramer suffering after effects from his encounter with Crazy Joe Davola, Jerry suggests Kramer see a doctor right away.
Asked if he might be interested in doing something on television, Jerry accepts the NBC network's invitation to meet about developing a new series.
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