There's an easy way to make scanlines built right into Photoshop, and there's a good way to do it that I'll link you to.
The easy way is to create a new white-filled layer as the topmost layer. Then make sure you have black and white as the foreground and background colors, and go to the Filters: Sketch: Halftone Pattern. Set the halftone pattern to "Lines", set the thickness of the lines (smaller is usually better) and hit OK. The white layer is now filled with a blinding, annoying set of alternating white and black lines. Set the blending mode of this annoying layer to "Overlay" or "Soft Light" and see how it looks. You might need to fiddle with layer opacity or levels to get the look you want.
See the link below for a tutorial on a more flexible but more time consuming method. There also used to be an ass-kicking "TV" filter that did static, scanlines, ghosting, the works. Can't find a version that works with PS 7 or later though :(
JF
: Yup, I agree Jay. A scanline effect would be the best. I don't know if you
: can truly see it too well (I just put up a new version in which you can
: see it better), but the burlap texture is supposed to be outlining a very
: faint full screen marathon logo. I would love to hear a tip from you as to
: how I could replace the burlap texture with very faint scanlines which
: would just give you a hint of the marathon logo underneath...
: unfortunately, us musicians can only do so much hacking in photoshop
: before our skill sets start to break down (pretty damn early!), so I
: wasn't able to figure out how to get that effect. :-)