When I was working and had some down time, I used to browse one of those websites that posted stupid pictures and videos, and on day these pony pictures started becoming more prevalent. It was then that I heard that thy head brought back MLP. Now this was at the time they were rebooting a lot of 80 classic shows and my thought was, why cant they just let that die?
Then two things happened; I came across the My Little Pony Physics Presentation video along with the RD VS Starscream Death Battle, and thought, ok, but still not for me. Then Netflix started recommending this show to me, and one day I was bored and thought that if I had already watched the Tinkerbell DVD movies, I can watch this, and watched the first Equestria Girls Movie, before watching all the episodes that were available at that point
Then after that I bought my first plush and officially became a brony.