How much do you know about 'The Big Bang Theory' ??? OK, we all love 'big bang theory', but how much do you take note whilst watching it? kikibluebell123 published on February 18, 2013 Stacked 1/5 One of these captions is part of the big bang theory theme tune! Which one is right? Math, science, history, unraveling the mysteries Science, maths, history, unraveling the mysteries Science, maths history, revealing the mysteries 2/5 (knock, knock, knock)" Penny!"(knock, knock, knock)" Penny!"(knock, knock, knock)" Penny!" Type answer. Hint: 7 characters 3/5 What is Rajesh's surname? Is it... Kothrappaly Kuthrepali Koothrappali 4/5 What is Howard's real name? Maximilian Van Trouse Simon Maxwell Helberg Gale Thornton Parc 5/5 Amy is who's girlfriend? Type answer. Hint: 7 characters