Any thoughts welcome. We have two HDMI connections, one from the PVR which is normally on standby and needs to be left like that so it works for its timed recordings. The other for a DVD player which could be powered right off when not in use, assuming it has a power switch. Aside from that only the aerial.just a though
do you have anything plugged in to the tv usb ports or similar that could be a parasitic load ??