ATLA

Azul is Spanish and Portuguese for blue, possibly a reference to Azula's Firebending.
Her name may also come from the Sanskrit term Asura, a Hindu term for demon.
Azula's name was originally going to be "Zula".

In some avatar comics, her name is mispelled "Takara" instead of "Katara".
Katara's voice actor, Mae Whitman, has previously played the part as Rose in American Dragon: Jake Long.

The Southern Air Temple is the only episode in which the título screen, which denotes the chapter and book, does not have a white background (the background is the sunrise).
According to the Nick.com's website...

Kataang or Zutara, we’re all here because we like one or another. I myself, am on the Kataang side. So I decided to share why in one neat little article. Some parts are taken from my other article.

Why I Like Kataang

First and foremost, I like goofy, light hearted romance mais than I do a serious and mature one. I like things that will make me laugh, something that isn’t full of angst and melancholy. Aang and Katara have mais of a cute and fun relationship. Don’t get me wrong Kataang has it’s mature moments; such as the moments mentioned in the paragraph below. I don’t think a ship...