The gang finally return to Gravity Falls with special guest Paul Griffin! Broadcast on January 4th, 2015Featuring:Bianca Torres, Tyler Moliterno, Dave Roberts, Felipe Diaz-Vera, & Paul GriffinRunning Time: 1:33:51 Summary The second season of Gravity Falls was announced on July 29, 2013 by Eric Coleman. It premiered on August 1, 2014. According to Alex Hirsch,