Filming for Season 8 of The Big Bang Theory began earlier this week, but that's not the only reason the show has been hitting headlines recently. Fans were horrified when rumours began to circulate that Jim Parsons had quit the show due to animosity between himself and co-star Johnny Galecki - but these were soon confirmed by the actor to be completely false. Only a short while later, it was announced that the cast had finally managed to renegotiate their contracts with the show's bosses - a process that had been ongoing for months and even delayed filming of the new series - along with the revelation that Parsons, Galecki and Kaley Cuoco will now receive one million dollars per episode. Whew! It's difficult to believe that as of 2014, the hugely popular sitcom will have been on our screens for a full seven years and as many seasons - and yet, after all this time, we still don't know Penny's last name. Although we are unsure if this piece of information will ever be revealed, a wealth of interesting trivia about the show has surfaced throughout its run; and 11 of the geekiest facts known to us outsiders have been rounded up for this article. Remember Leonard's short lived romance with Leslie Winkle, many seasons ago now? Weirdly enough, the two actors have starred together as a couple before in much-loved sitcom Roseanne.And have you ever wondered about the origins of 'Soft Kitty'? It might interest you to know that it's not exactly exclusive to the show... Read on to find out more!