Here, I store my notepad files of each episode of My Little Pony: Friendship is Magic's animation mistakes. Keep in mind that the time stamps are based on my own upload, and therefore may not reflect accurately on your own video. Due to the immense size of these lists, I've decided to upload the files into my MediaFire account. Follow the link for the episode's current mistake list. Note that due to this, I will not be updating these lists as often.
The process I use to find these mistakes is simple: I open the episode with Quicktime and simply view it frame-by-frame. Every mistake I find gets a time stamp, followed by a description of the mistake. Please note that time stamps with a star before them is NOT a mistake, but just a point of interest I wanted to keep in mind, such as an easter egg.
I occasionally upload a My Little Bloopers video on my youtube account to point out the major mistakes. The smaller and more common ones are left here.
That being said, I'm not perfect: if you know of any mistakes I may have missed, then comment on it here!