I live in the US so I made a euro PSN account to get the demo.My tv was set to 720p and my ps3 was set to full 1080p, but when I played the demo there were some  display problems. I don't know if it was my tv, or my ps3, or the demo itself, but both the screen and the sound were kind of  fuzzy. The demo was amazing of course, but if you guys could help me I could make it sound and look better:).

Uh, I think that the demo would run in PAL no?  at 50 Hz instead of the normal 60 hz used here in the US.  Also, why are you setting your PS3 to 1080p when you have a tv that is only 720p?  You never played with the box that had you fit different shapes into their boxes?  A square wont go in a round hole.  Are you retarded or something?

PS3 is region free so I don't believe it's a PAL/NTSC problem. The final version of the game will upscale to 1080p but I don't believe the demo does.