1. I plan to install a mains spur behind the wall-mounted TV. It will be in a vertical steel pipe from the floor chased into the wall. However, I'm confused by the regulations concerning the maximum allowed height. I need it to be 1.5m from the floor but I think I read that the maximum is 1.2m. Please can someone clarify. 2. The HDMI and other video/data cables will go from the source device (eg DVD) to the TV through a channeled conduit with brush-entry/exit wall plates (i.e no wall connector, just point to point cables). Is a simple PVC conduit OK or are there other rules. As no "sockets" are involved I assume there are no height regulations.