It's hard to believe that one of the most famous, most successful TV series of all time started a whole seven years ago. Doesn't seem right, does it? Time flies when you're completely addicted, and Game of Thrones is certainly proof of that. We've been glued to our television and computer screens since it aired, following the incredible journey every step of the way. But how hard have you been following it? Did you notice this insane tiny detail from the latest episode that could change everything? Watch the video at the end of this slideshow to see this tiny little detail.