Hi there! Welcome to DCW!
Anyways, answering your question, I pretty much 'started' watching DC when I was still very young. I dunno what age I was at that time. So yeah since I was very young, I wasn't yet able to understand what was going on at that time. Plus, I was only watching it on a TV channel and I only watch it if it comes on. I wasn't far much interested on the series back on those days.
But welp, on when I really 'indulged' to the series was some months (summer in my country) prior to me joining this site. It was back on 2011. I think I was 13 at that time. At that time tho, I was watching random episodes only and it was on a cd or some sort. And then, I stopped watching again lol. *blames my easy to get bored self*
Haha, and then I started watching DC again just back this July-Nov. This time in an orderly fashion. But well, I stopped again xD Dunno when will I continue watching it but I will for sure soon.