If anyone here enjoys NTSC-simulation filters, it behooves you to go read my blog post here: http://moogle-tech.com/blog/?p=120
Basically, I'm damned sick of people going on about how cool this "CRT emulation" is that the guys at GIT did. NRS and blargg are the only folks so far to come up with legitimate video signal degradation emulation based mathematically
on what the NTSC spec would do to it.
These guys at GIT, they just said, "Huh, well, this kind of looks good, let's go with that!"