I like watching Anime, or Japanimation, cartoons in my free time! Have you ever watched them?
I did when I was younger.  I enjoyed watching Dragonball Z.
It's hard to believe, but the earliest Japanese anime dates way back to 1917, but it has become increasingly popular over the last few decades! 
Wow, I didn't know that.  What is considered to be the most popular Japanese anime?
Naruto is very popular. I think anime has become so popular because viewers can watch not only on television, but on the internet as well. Did you watch anime online?