In the wake of Adult Swim’s 15-minute length series Childrens Hospital rallying two wins and four noms in recent Emmy history, the short form categories have become a popular place to be with such companies as AOL and NBC jumping into the fray. This year, the Television Academy expanded the short form slot to variety series, and by doing so has allowed more independent voices to flourish, specifically the Maker Studios’ series Epic Rap Battles of History, created by Peter…