[Stooky Bill]

The usual default is to have a non regional version of BBC One for England, but because this is a long term outage they've swapped that out for the NE version. 
The disadvantage with this of course is that if the system is used by any other transmitter in England viewers there will see Look North. However its not that often it been used in anger and when it does its usually for a brief period

Interesting, so normally it is a rare Freeview outing of BBC One Nightlight (effectively)!

No, because that is only going out on the SD transponder at 28.2e which is the one that satellite viewers are receiving. 

Having a red caption saying about buying a new receiver would look odd and cause confusion on terrestrial where there's no SD closure scheme