Sheldon and Amy are all about spreading gossip in this photo. It's from the episode "The Herb Garden Germination."
Rating: 5.0 / 5.0
After having an emotional dream, Sheldon hugs Leonard to show he cares.
Rating: 5.0 / 5.0
We all know what happened between Penny and Raj on the season four finale. Here they are on the ssason five premiere.
Rating: 5.0 / 5.0
Penny and Leonard go bowling and Leoanrd sure does seem to be celebrating something.
Rating: 5.0 / 5.0
That's Katee Sackhoff and that's George Takei. Both guest star as themselves on the episode "The Hot Troll Deviation."
Rating: 5.0 / 5.0
When Penny spends the night at Leonard's she ends up ruining oatmeal day by cooking french toast. How dare she?
Rating: 5.0 / 5.0
This is awkward for everyone. Raj and Penny stand in front of the boys on the fifth season premiere.
Rating: 5.0 / 5.0
You gotta love this guest-starring appearance on The Big Bang Theory: that's former sitcom star Mayim Bialik!
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.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.