I already had a BT Youview+ box. My Plusnet Youview+ box arrived and I set it up today. This is how I understand the 2 boxes to work. It appears that all the freeview channels work fine on both, but only one box at a time can access the extra internet channels, and it has to be transferred from box to box as needed from the box wanting to be used. It takes a bit of time. The error codes are IPC 6017 and BTV 4034. These don't appear on the Youview site list of error codes. It is not much of an issue for me, although it might not record on one if the other is in use, so might be inconvenient for some people.