Jim Parsons and Mayim Bialik, stars of The Big Bang Theory, had different approaches to memorizing their lines. Parsons used flashcards and typed out scenes on a Word doc, while Bialik relied on her photographic memory. Parsons worried that Bialik would quit the show after his departure, but the creators decided to cancel the show instead. Despite its end, The Big Bang Theory remains one of the most popular sitcoms of all time. Parsons' dedication to his role and his intricate process for memorization made him an amazing actor to watch on the show.