Wil Wheaton is back! And he's hosting a party at his house here.
The boys are concerned about Raj here, but all we be okay. He meets a girl he can actually talk to on "The Wiggly Finger Catalyst."
You're looking at a photo from "The Pulled Groin Extrapolation." Sheldon and Leonard have a lot to discuss.
Leonard confronts Penny in this scene from the season five premiere of The Big Bang Theory. She sure finds something funny!
The gang is all here. And we mean everyone! Check out this scene from the fifth season premiere of The Big Bang Theory.
This is awkward for everyone. Raj and Penny stand in front of the boys on the fifth season premiere.
Don't look for Leonard and Priya to slow down on season five. Not even 7,500 miles can end their relationship!
The men have a mission on the episode "The Zarnecki Incursion." They must find the person who hacked into Sheldon's online game account.

TBBT Quotes

Raj: Well, to paraphrase Shakespeare: It's better to have loved and lost than to stay home every night and download increasingly shameful pornography.
Penny: Oh... you poor baby.
Raj: What's wrong with me, Penny?
Penny: Nothing, nothing. You know, if we weren't friends - and you hadn't brought up that creepy pornography story - I'd be on you like the speed of light squared on matter to make energy.
Raj: Hey, you totally got that right. E = MC squared.
Penny: I listen. I have no idea what it means, but I listen.

Sheldon: I recently read that during World War Two, Joseph Stalin had a research program to create supersoldiers by having women impregnated by gorillas.
Howard: What a sick use of science.
Raj: Hey, as long as the baby's healthy.
Amy: I wonder if Stalin considered any other animals.
Leonard: Hippos are the deadliest creature. A half-human, half-hippo soldier would be pretty badass.
Howard: Yes, but when they're hungry-hungry, you can stop them with marbles.
Sheldon: Yeah, the correct animal for interspecies supersolider is koala. You would wind up with an army so cute it couldn't be attacked.