It's not going to air on tv,so apparently never
Although there's a petition for Cartoon Network to turn this into a tv show,and I can link you to that if you'd like!
So a gravity falls/ adventure time-esque mystery show with talking corgis and a bipolar robot with serious wheatley vibes? sounds like a hell of a lot of fun, I'll sign.
Which is one of many reasons that this needs to become a full fledged show
Although there's a petition for Cartoon Network to turn this into a tv show,and I can link you to that if you'd like!