As we're all waiting for the rest of season 3 of Avatar to air, I think I have found one of the reasons for the delay- there was a swap and Sokka has been messing with the original Avatar production schedule!
Anyone familiar with animation productions will recognise the chart used to keep track of production- they pretty much look the same at every studios-
From the episode "Painted Lady"[link][link]
Darn you Sokka! Awww...we still love you.
(seriously, I do not know why there is a delay in the broadcasting of new episodes. We all need to be a bit more patient.)
Before I forget again!
All characters from Avatar are Copyright Nickelodeon, Viacom and to the creators, Mike and Bryan.
Dean is his own master.
Screenshot from the episode "Painted Lady"- same copyrights- Nick and Viacom are the owners.