hi all, i am on verge of buying my first plasma, w4 or w5, but my girlfriend is concerned about what we was told in one of the demo shops we went in. He said that you do need the tuner box if you want to connect more than one device to the screen. I've tried to explain the set up to her after reading all the threads from you all on this forum, so can you please confirm that if i do the set up below i will not need the tuner. 1-dvd connected via component cable to component inputs. 2-sky connected from rgb scart to vga connverter to vga input. 2-xbox conected via s-video lead to s-video input. all audio via yamaha amp. Will this set up work ok with no problems. thanx in advance, andy.