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：In season five, Penny and Leonard's relationship is relaunched in full "beta test" mode, while Sheldon, Howard, and Raj discover the feminine mystique is something that cannot be easily graphed or calculated. As Sheldon makes begrudging amendments to his "Relationship Agreement" with his "friend-who-happens-to-be-a-girl" Amy Farrah Fowler, Raj contemplates an arranged marriage, and Howard is all-systems-go for both is NASA space launch and wedding to the spirited Bernadette.
