Alternative Titles:Big Bang: A Teoria, 天才理论传, Big Bang Theory, Hamapats hagadol, תאוריית המפץ הגדול, Enfejare Bozorg, ビッグバン★セオリー, La Teoría del Big Bang, Štreberi, Teoria vel'keho tresku, Büyük Patlama Teorisi
Overview: Howard considers whether or not he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.
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First Air Date: Sep 24, 2007Last Air date: May 16, 2019Season: 12 SeasonEpisode: 279 EpisodeRuntime: 22 minutesQuality: HDIMDb: 7.91 / 10 by 11204 usersPopularity: 182.149Language: English