The Big Bang Theory Season 1 Episode 17 : The Tangerine Factor
Penny is furious and breaks up with her boyfriend after he posted details about their sex life on his blog. Meanwhile, Sheldon asks Howard to teach him Mandarin as he's convinced the Chinese restaurant is selling "Tangerine chicken" yet is really using oranges, a cheaper citrus fruit.
As Penny laments her choices in men, Leonard awkwardly asks her out. A few days pass and both Leonard and Penny are worried that this relationship could ruin t...