Ah, good, Penny, you're here to exchange gifts.
The Recombination Hypothesis
Penny:It's actually kind of nice. You reading, me reading. We're like an old married couple.
Sheldon: If we were an old married couple, the wife would serve iced tea...
Season 5 Episode 02 – The Infestation Hypothesis
Season 4, Episode 7, "The Apology Insufficiency"
Perfect Style! Everybody loves Raj!
It's about the time. How many likes for this one?
Season 5 Episode 23: The Launch Acceleration