The Creepy Candy Coating Corollary

Summary
The episode begins as Sheldon enters a trading-card competition upon learning that Wil Wheaton, who he hates for not coming to a sci-fi convention he went to, will also be attending. Raj (Sheldon's partner) and Sheldon make it to the final round against Stuart and Wil. Sheldon then throws the match upon learning that Wil did not make it to the sci-fi convention because his grandmother had died, causing Sheldon to lose resentment. This, however, turns out to be an elaborate plot on Wil's part to get Sheldon to forfeit, which causes Sheldon to hate him even more. In the mean time, Leonard asks Penny to hook Howard up with one of her friends, acting on a pact Leonard and Howard once made to each other. Penny does, and they end up going on a double-date, only to find Howard and Bernadette have nothing in common, until they start talking about their mothers.

Trivia

 * The episode gets its name from how Penny describes Howard.
 * This episode contains Chuck Lorre's 263rd vanity card at the end.
 * Sheldon mentions the ice planet Hoth during his match with Wil. However, Hoth is from Star Wars, not the Star Trek franchise.

Quotes
Bernadette: I know how you feel. My mother makes me crazy.

Howard: Not as crazy as my mother makes me. Bernadette: Oh, yeah, does your mother call you every day at work to see if you've had a healthy lunch?

Howard: My mother calls me at work to see if I had a healthy bowel movement.

(Howard checks his ringing phone)

Howard: Damn, it's my mother. Bernadette: Are you going answer it?

Howard: I'm torn. She might be dying. You know, I wouldn't want to miss that.

Howard: Leonard, a pact is a pact. You have to get Penny to fix me up.Leonard: It's not that simple. What am I supposed to say? 'Penny, do you have any friends you'd like to never hear from again?'

Wil Wheaton: Did that guy just say "revenge is a dish best served cold" in Klingon? Stuart: I believe so. Wil Wheaton: What is wrong with him?Stuart: Everyone has a different theory.

Leonard: The deal was that if either of us got a girlfriend, we'd have her fix the other one up with one of her friends. Penny: And you thought a good time to bring this up would be right after sex? Leonard: Well I sure as hell wasn't going to bring it up before sex.