Avatar: The Last Airbender was easily one of the most spiritually direct and conscious TV shows to date. It's geared toward younger kids but is a fun watch for all ages. It brings mysticism, storytelling, and excellent characters together!
I REALLY want to see more of Toph as a mother. I think it would be funny and sweet and show us more of her soft side and of course see how strict and rigorous she must have been while training Lin and Suyin.