Rajesh Koothrappali: Wow, I-I knew you were single back then, but that is a lot of p*rn…

Howard Wolowitz: Science! A lot of science.

Leonard Hofstadter: Wow, you were really into Asian science.

(They’re aware Bernadette can possibly hear them through baby monitor)

From The Big Bang Theory – Season 11 Episode 9: ‘The Bitcoin Entanglement’ (11×09)