It looks like Leonard and Penny will make up for lost time when Leonard returns from his arctic expedition in the season three premiere of The Big Bang Theory.
Rating: 5.0 / 5.0
After some much needed tequila shots after Leonard's mother terrorized them, Penny and Leonard share a drunken kiss!
Rating: 5.0 / 5.0
The group goes all Justice League in this scene/episode of The Big Bang Theory. Seems about right for the show, doesn't it?
Rating: 5.0 / 5.0
Sheldon shows off his homemade board game, Research Lab where the physics is theoretical but the fun is real! Haha.
Rating: 5.0 / 5.0
Sheldon defines the word cool when he puts on his toy hulk hands and in front of Raj.
Rating: 5.0 / 5.0
Holy kissy face! That's Leonard's mom kissing Sheldon in this stunning photograph.
Rating: 5.0 / 5.0
Sheldon requires a chaperon on his first date when season four of The Big Bang Theory kicks off. Penny is chosen for the job.
Rating: 5.0 / 5.0
We love any scene involving Sheldon and Penny together and here he is taking her to the hospital when she's injured.
Rating: 5.0 / 5.0
Who knew Wolowitz could sing and play the keyboard? Well soon Bernadette will know.
Rating: 5.0 / 5.0
Sheldon has a dream where he becomes Gollum when he becomes obsessed with a Lord of the Rings prop.
Rating: 5.0 / 5.0
Sheldon Cooper ends up taking off his pants during his acceptance speech after a few too many glasses of wine.
Rating: 5.0 / 5.0
Sheldon and Mrs. Hofstadter (Christine Baranski) decided to perform a little duet in Rock Band to some Journey. Watching them sing and dance was priceless.
Rating: 5.0 / 5.0

TBBT Quotes

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.