First of all,there is nothing to criticize this show for. This show has got its selling point right. From the subtle comedy to its references to Back to the Future this show holds everything good for an average viewer. With just a 22 minute run-time and a total of 30 episodes so far this show is always a must-go for a binge watch day. And with everything said the main USP of this show is how they handle continuity, that needs to be applauded. Waiting for more seasons to come.
PS: You don't need a Harvard degree to understand this show. :P