[s4e9] The Boyfriend Complexity -

“I read on their Twitter when that episode aired that [the paper landing on Sheldon's shoulder] was a happy accident.” Reddit · r/bigbangtheory · 11 years ago Notable Quotes

Sheldon spends the entire episode meticulously redrafting the Roommate Agreement to account for Penny's "return" to the apartment. [S4E9] The Boyfriend Complexity

In the B-plot, Raj and Howard spend a night in the telescope lab, leading to an accidental kiss while using a wine-tasting simulator. Fan Perspectives “I read on their Twitter when that episode