Complex sentence: The American premiere on 1 June 2016 gained 197,000 viewers, and an 18-49 demo rating of 0.04, while the Australian premiere the following day was watched by 452,000 viewers.
Split into simpler sentences: The American premiere on 1 June 2016 gained 197,000 viewers, and an 18-49 demo rating of 0.04. While the Australian premiere the following day was watched by 452,000 viewers.