From what I've seen in the other threads here it's typical to share how you first got into the show, so here goes.
My friend invited me over for a night of Xbox and he said that I had to watch one episode of FiM before we played Halo. I humored him, and after the first episode was over, I was disappointed that we couldn't watch more. We did the same thing the next weekend and before you know it, I was hooked. Been a brony ever since last July.