My favorite episode is when Aang and everyone go through this desert to find some lost library under the sand. The Library is protected by that big owl. I remember Sokka going through the place trying to find the weakness for the Fire Nation. I remember seeing commercials for it on TV because it was a special episode. I made sure I didn't have any homework that night or anything else to do to watch it. Its also the episode when Appa gets kidnapped by those Sand People.