User blog comment:Sonicmasher/Mixamajig airdate!/@comment-3263817-20150907215258

It should be towards the end of the month. So far, it seems to not be airing next Monday, and I doubt they're airing it on an irregular weekday or during New Thursdays, and Mixed Up Special's Sunday was part of a weekend event, so it should definitely be airing on a Monday.

DO NOT TAKE MY WORD FOR THIS - it is not 9/14 since there is no commercial yet, so it is either 9/21 or 9/28.