Aka：Teorie velkého třesku / Teória veľkého tresku / Big Bang / Теория большого взрыва / Agymenők / 生活大爆炸 / A Teoria do Big Bang / Теория за големия взрив / Teoria wielkiego podrywu / The Big Bang Theory / המפץ הגדול / Teoria Big Bang / 빅뱅이론 / Теорія великого вибуху / Didžiojo sprogimo teorija / Gáfnaljós / Rillit huurussa / Teorija Velikog Praska / تئوری بیگ بنگ / ビッグバン★セオリー ギークなボクらの恋愛法則 / ทฤษฎีวุ่นหัวใจ / نظرية الانفجار العظيم / 宅男行不行 / Big Bang: A Teoria / Штребери / Vụ Nổ Lớn / La Teoría del Big Bang / დიდი აფეთქების თეორია / Lielā sprādziena teorija / Тэорыя вялікага выбуху / Veliki pokovci / Katta portlash nazariyasi / Suure paugu teooria / 囧男大爆炸
Summary：Leonard returns from his North Sea expedition to find that his relationship with Penny involves more beta-testing than he’s ever done in a lab. Howard’s attachment issues with the women in his life in particular and Raj’s social breakthrough with women in general provide more laughs. Bernadette and Amy stand staunchly by the men in their life, even when they’re sitting in marathon role-playing games. Sheldon sees his mom in a totally different way, parties with James Earl Jones, establishes a (sort of) bond with his idol Professor Proton and makes a scientific breakthrough that breaks down before you can say Science Friday.
