My favorite parts of the episode* were some of the reactions. When Granny Smith started singing, and everyone in the background startled, with Dr. Whooves in the foreground. And then when she tapers off her song to see the pots and pans, and the "...Really?" look that the shopkeeper gives her before suddenly going "Oh wait, customer, WELCOME!!"
Also, Scootaloo calling Applebloom a dictionary. And then turning a light on with her head.
In fact, facial expressions were at an all time hilarious this episode.
(*fun fact: I wrote "apple" instead of "episode" at first)