Avatar: The Last Airbender & Legend of Korra are awesome series! The people that make inlude stuff like this throughout both series, kinda like Harry potter and the whole (potion ingredients)= I am sorry for mom dying.
Okay so I haven't seen the second series but I'm a huge fan of the Gaang and you realise with this ^ means right? that entire episode Toph was completely aware that Sokka was stuck in a hole. and she didn't do a single thing about it :')