Have taken receipt of my G20 yesterday and I have been blown away by it. It was dead easy to set up, autotunes everything, DVB, analogue and freesat and only takes a few minutes. I didn't opt to connect wirelessly, and so just plugged the ethernet cable in the back and followed a few simple steps. The VieraCast facility works very well and am very impressed with its gadgetry.
The connectivity of the tv is excellent, offers everything you could possible need. I am now looking into buying a usb hd, about 1Tb and 7200rpm, to test out the recording capability, still a big bonus to this tv. Freeview HD comes across quite well although I am yet to test this with a bluray player. DVD's even look top notch on this set, although I am not sure if that is because I am just used to the very low standards of my last tv....