Thanks to the kindly advice of shakey David Sheeky and the happiest h I have re-rigged my Viera set-up to: Sky AV1 PS2 AV2 DVDR AV4 (all 16:9 RGB where possible). One tiny snag is that Sky is spluttering a bit i.e. the picture becomes momentarily blocky and exhibits digital glitches through the sound. It settles down usually after a second or so but is provoked with a channel change (and when your skipping through MTV 1 to the Musician Channel avoiding adverts that's a lot of skipping!). Any advice fully welcomed.