[sky303]

My guess is that Sky News (Australia) is a well known brand and known to its viewers and that a new name might risk their audience. Especially in this time period, they'd be afraid of getting rid of brand equity that's been built up. Both Sky News are mostly contained to their countries, but the real confusion would be social media videos and to outsiders of either country or other countries who don't really know the ownerships of channels and would think they are the same thing.