They're showing episodes 1-4 as a 'catch up'. Episode five is on the 9th.
In the US episode four aired on Oct 14. They're currently taking a three week break and they'll show episode five on Nov 4.
As Pacman says one one the perils of running at 'near' US pace, but that's what people seem to want!!
Personally, I prefer when they hold them back and do a clear run.