Fans of long-standing series often find themselves confused about just what happened when and where, and as a result may go back and watch or read through a large section of the series - or even the whole run - in order to refresh their memories or bolster some particular fan theories they hold. This is especially common in Web Comics fandoms, where easy access to the whole series archive makes it all too tempting to drop what you are doing and look for that particular scene you just know happened in a certain Story Arc...