I remember Shows did this more often, Camp Lazlo did this too and those are funny and quick to watch. Cartoon network does this with Mini-episodes for there current cartoons like Steven and Power puff girls witch they work good as short video on youtube and there own website, but I remember when cartoon channels did this and they aired them during commercials. It's like extra promotion for a cartoon while being an episode itself only way shorter, I wouldn't put them in the same class as the channel indents like Cartoon network city or there Powerhouse era as there more of a goodie for sticking around during the commercial as well as making the channel stick out, but those were mandatory because you needed ads to make your show look interesting to watch but with Mini episodes it's more like a sample of an episode plus when the show is all wrapped up and finished the Mini-episodes feel like you got a bit more out of the series as a whole and it just cool to watch if you just happen to be watching during break for ads, Gravity falls had great shorts with great comedy that doesn't feel lack luster of water down at all. Gravity falls was a short series with 40 episodes and with episodes like Dipper vs Manliness and Roadside attraction brings that number down a bit but these shorts more than make up for 2 bad episodes and when I'm feeling down craving for more Gravity falls, these shorts help fill my need a bit more.
Review of Gravity Falls Shorts
