Here’s everything about Big Bang Theory using live audience or a laugh track: For its entire run, The Big Bang Theory was filmed before a live audience, so with very few exceptions, laughter heard in final recordings is not a laugh track. This was done because the production believed that the live audience added value … Read more
Sheldon says two Vulcan phrases to Penny in this episode. The first is Kup-fun-tor ha’kiv na’ish du stau, and the second is ponfo mirann. They mean “Can you return life to what you kill?” and “Go to hell” respectively. They are both part of the same conversation where Sheldon commits to propose to Amy.