[Mute]

Once the box has been updated to 360 does it make use of the hard drive still or has it moved to cloud recording?

Although cloud recording is used in other countries, in the UK the recordings are still stored locally on the hard drive.  I've seen some comments suggesting that there are licencing issues with cloud recording in the UK, but I'm not sure how accurate that is.
If you have multiple V6 boxes that you "upgrade" to TV360 then each box will save recordings to its local hard drive.  If you have a new TV360 installation with multiple boxes then only the main box will have a hard drive, any others wont and instead will save recordings to the drive on the main box.