From wiki...
Quote:
“ Tweed Shire is a local government area located in the Northern Rivers region of New South Wales, Australia. The shire is located adjacent to the border with Queensland where it meets the Tasman Sea coast. The shire, administered from the town of Murwillumbah, covers an area of 1,321.0 square kilometres (510.0 sq mi), and has existed as a local government entity since 1947. It was named for the Tweed River. It is also the location of the jungle used in the U.K. TV series I'm a Celebrity...Get Me Out of Here!”
It's the area where IAC is set....... Still, it is odd that they mention it almost every night. Especially when they have never mentioned it before.
As the OP says; it's almost like they're being told to say it.