Hi Mark
Your Tv was okay with the scarts?
All that I have connected is my Sky into Scart1(RGB) scart from sky box to video and then video into scart 3. The guy from John Lewis said put the Dvd into Scart 2. Along with the Tv aerial for ITV thats all I have connected and getting the banding when it seems the Tv has been on for a while.
Its bloody annoying now that I have noticed it...I'll go and speak with John Lewis...they will probably think I'm mad and seeing things

but at 1500 quid I expect perfection....
Steve