: Howard cashes in on a "Girlfriend Pact" made with Leonard in 2004, requiring Penny to set him up with one of her friends. She introduces him to Bernadette, a fellow waitress and microbiology student. They initially struggle to connect until they realize they both have extremely overbearing mothers.
: The episode features several homages to Star Trek II: The Wrath of Khan , including Sheldon quoting Khan and screaming "WHEATON!" in the same style as Captain Kirk's iconic "KHAN!" scream. [S3E5] The Creepy Candy Coating Corollary
: In the final round, Wheaton tricks Sheldon into losing by falsely claiming he missed the convention to attend his grandmother's funeral, only to later reveal he lied just to win the game. Trivia and Behind-the-Scenes : Howard cashes in on a "Girlfriend Pact"