Rescued From The Scrappy Heap / My Little Pony: Friendship Is Magic

My Little Pony: Friendship Is Magic did this to the entire MLP franchise, at least after the rather unsettling appearance of the G3.5 videos that surfaced beforehand. It took a series that had become Snark Bait and gave it a very compelling cast and setting that stayed true to its idealism without being too overbearing. This also gets applied to several in-universe characters.

http://tvtropes.org/pmwiki/pmwiki.php/RescuedFromTheScrappyHeap/MyLittlePonyFriendshipIsMagic