Avatar: The Last Airbender (the TV show, NOT the movie). It was on Nickelodeon, is pretty much in constant re-runs, is out on DVD, and is available for instant streaming on Netflix. I would say it’s good for children around 7 and up, and grown-ups might like it too (my husband and I both loved it). There is some violence, as there is a war going on during the series, but there are wonderful lessons about friendship, kindness, choosing peace over violence, listening to your inner voice, working hard, determination, forgiveness, protecting the earth and love. It really helps to watch it in order, and to make sure you see the entire series (there are three seasons).
I cannot say enough good things about this television show. In fact, I would like to say thank you to Michael Dante DiMartino, Bryan Konietzko, everyone that worked on the project, including Nickelodeon for putting this series out. I am not exaggerating when I say that I hope my son will carry the lessons of Avatar: The Last Airbender with him for the rest of his life. Also, as if all that wasn’t enough, there are fabulous chapter books that summarize the series, and are at a reading level of around 6-9. Here is my review of one of them: Earth Kingdom Chronicles: The Tale of Aang.