OK. Don't know if this is nationawide or simply got these guys on a good day. Was hesitant in posting until I know for sure the details/confirmation.
Got a phone call about 9 days ago - Sky guy wanting to know if I wanted to reinstate my multi-room subscription (which I had about 2 years ago, but cancelled - Sky Go etc) I said not really because of these reasons. He said he could do it for £2.50/month - which is kind of a good price on it's own I guess.
That said, I no longer have the TV in the same room as it was installed last time over. He suggested he could have it reinstalled in another room - which makes sense. Cost - Free! Also - he is bringing a brand new Sky HD box and installing it free too.
So, for £2.50 per month I am getting installation, new Sky HD Box, remote (obviously) and phone line extension - he is coming today to install (phone call last night confirming the details). Result in my opinion, and all for an extra £2.50/month. Worth noting that I am on the package which DOESN'T include Movies and Sports - so it would appear it's not limited to people with the full package.
Like I say - don't know if this option is available if you were to just call them but it's worth a try. Good luck should you decide to go with it.