Didn't miss much.
On the Yorkshire thing - there is nothing about the landscape we've seen which
suggests or is
unique to Yorkshire. It could be Hertfordshire, it could even be Devon...
But, given that we've followed most of the principal characters from
London, that all the characters we KNOW were London based (including that MP from the pilot and next week's trailer) have all bumped into each other pretty quickly, and that they as a group don't seem to have traveled any huge distance, it seems pretty obvious to me that they're most likely to still be in the south east.
Blackburn is about 250 miles or so away from London. In the dangerous and unpredictable world they find themselves in it might as well be 10,000 miles away. Food and resources are scarce, they might find themselves in the middle of nowhere with no fuel and they don't even know if any of the kid's family have survived.
Would YOU risk a jaunt to the other side of the country against those odds, when you can't even go to a local supermarket without someone waving a shotgun in your face?