Before we get to the subject of missing monotremes, the day before the debut of the first part of this summer's biggest cliffhanger, July 25th, is used by marketers as something called "Christmas in July", where radio stations play holiday music, cable systems on demand music channels play holiday videos, sales are held and so an and so on. I should know a bit abot this as I am an administrator (with fellow user JeremyCreek) on something called The Christmas Specials Wikia.