The Date Night Variable

The Date Night Variable is the first episode of the sixth season of the CBS sitcom The Big Bang Theory. It is set to air on September 27, 2012.

Plot
Sheldon and Amy have a date to celebrate the two-year-anniversary of their first date. However, Sheldon invites a lonely Raj to join the date, upsetting Amy. Meanwhile, Leonard and Penny decide to hang out, and Leonard sets up the apartment to accomodate all the things Penny likes, such as beer and watching a football game. Leonard tries to get Penny to talk seriously about where they stand in their relationship, only to get interrupted by Raj, who decides to leave Sheldon and Amy alone. Raj gets kicked out after trying to force Penny to admit her love for Leonard and winds up at the comic book store with Stuart, and they hang out together before Stuart agrees to have dinner and catch a movie with Raj the next night, putting them in a sort-of date. Meanwhile, Howard video chats with Bernadette and his mother from space and gets in a dilemma on whether to move out or not.

Quotes
Stuart: So Howard is really in space?

Leonard: 250 miles away that way (points up).

Sheldon: 253.2

Leonard: Like I said, they would let you go.

Raj: I wonder what he's doing now?

Howard: Thanks, Ma. Space is ruined.

Amy: Yes, according to our Relationship Agreement, he'll take me out for our anniversary date and engage in what onlookers know as physical intimacy.

Penny: ''That's hot. Remember to wear protection.''

Video

 * The Date Night Variable promo
 * The Date Night Variable, promo 2

Reference

 * Taping report from Fanforum.com
 * Picture of program sheet given during taping to audience is courtesy of Moyrani.