How do i get rid of lines on my screen?

How do I get rid of these lines that show up on-screen with my PS3?

• I've been having picture problems with my PS3 lately. It has these lines that show up on screen, just sort of hazy vertical lines that move from right to left across the screen, and lately there's been a horizontal bar of static fuzz that moves from the bottom to the top of the screen. If I unplug everything for a while the fuzz goes away and the lines become smaller and less noticeable, but they always come back. I've tried moving the power cord to a different outlet, I've tried buying a two-prong outlet adapter, but nothing seems to work. Has anyone had a similar problem, and if so how did you fix it? I have one of those Comcast cable boxes hooked up to the same tv if that might be part of it.

• Answer:

  Buy a hdtv that has 1080p . Then buy a hmdi cable = no problems