I think older TVs "bleed" the pixels together, making it look like a filter without actually being one.
I just realized that you might have not been talking about "color" bleed at all. Or maybe you were.....I don't know. But here's a link to something that might interest you. http://nfgworld.com/mb/thread/660-A...;?unb507sess=c64465bd3ffd8f204910216cb17e44a5
WARNING: This article "may seem" to be a bit misleading, but its not. What I mean is, the games were designed to be viewed on a 4:3 CRT, and were never meant to be viewed in their native aspect ratio (8:7 on a SNES for example). The reason for the 256 horizontal image was to conserve power for the most part, and the 8:7 ratio was MEANT to be stretched. This is why when some games are viewed at 8:7, circles look oval and squares look like rectangles, and thus, 8:7 is not correct. The game developer always used a standard NTSC Television when deciding if the final output looked correct. PLUS, the way a CRT displays images results in a "anti-aliasing" effect, which the game developers depended on heavily so that the jagged edges would be smooth (alot of LCD fanboys criticize CRT techology for this "anti-aliasing" or "fudging" effect, claiming that LCD can display "razor" sharp images. But "razer" sharpness not only ruins retro games, but it also can negatively affect movies too, as it "over" sharpens too much, such as human skin. Since when are pores and wrinkles suppose to be as sharp as a razer-blade? Thus one of many reasons why alot of people prefer Plasma (less sharp), or why others cling to their Sony XBR High Definition 1080i CRT's. Much more realistic for movies, and no motion blur!).
This article that I linked - if not read carefully - seems to indicate that stretching a 256 horizontal image was a flaw, but it was actually what the developer intended to happen. As the article says "Arcade games, consoles and even computers often took advantage of this, and created a RAM- and CPU-friendly smaller image that would be stretched out to fill the screen with no more effort than a tweak of the synchronization signals"..
Anyway, I just wanted to clear that up because I too was confused at first when I learned about this, until a did a little more research and found out that when you see these old games on a CRT, then you are seeing what the developer wanted to be seen, and that these games were NEVER meant to be viewed in their raw, naked format. This gives us even MORE of a reason to get these Wii emulators perfected, because neither the PS3, nor the Xbox 360 are 240p capable, and NO HDTV will ever show these games correctly in any format/filter. But the Wii IS 240p capable, thus these games will look right if emulated on a CRT in their "Original" display mode! So lets give the Wii the love it deserves!







