The Big Bang Theory is one of the most beloved sitcoms of all time, blending science, humor, and heart. With quirky characters and clever writing, it brought geek culture into the spotlight and kept audiences laughing for over a decade.

This quiz is a must for fans of Sheldon, Leonard, Penny, and the rest of the gang! Test your knowledge of episodes, catchphrases, relationships, and the funniest moments from the show’s twelve-season run.

Think you're a true Big Bang Theory expert? Take the quiz now and relive the laughs, the science jokes, and the unforgettable friendships. Bazinga!