hi just wonderd if someone could help me out with something my friend has a hp pl4272n plasma tv which is from the us which i know it is ntsc and we are pal but they have a converter that makes it into pal What i want to know is when you put a ps3 into hdmi it finds it but if you put say sky hd init It just comes up no signal why is this as i thought hdmi was universal to all countrys and yes the sky box i set right 1080i the same as the ps3