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
Holy kissy face! That's Leonard's mom kissing Sheldon in this stunning photograph.
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
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: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

Penny: What actor holds the record for being named People magazine's Sexiest Man Alive?
Sheldon: William Shatner!
Leonard: I don't think it's Shatner.
Sheldon: Then it's got to be Patrick Stewart