Rich
I have the Panasonic Viera TX-P42G20 which is a slightly older version of what your looking at. The picture is stunning, the tv has been faultless for the 18 months or so that I've had it.
USB recording is a great facility, I can record in either Freeview HD or Freesat HD or normal SD quality on to a hard disk and the quality of the stuff when you watch is is as good as live. The only downside is that you have to watch the channel your recording
or 'tape' two channels at once, because it doesn't have twin tuners
Nevertheless, with this model I can switch between the freeview & freesat facility and watch other stuff