Ok pictures as promised. I used my SNES because it was closest at hand. The Neo Geo is going to be pretty cut off I'd imagine so I'll continue using it with my PVM (hurray for underscan!).
Honestly, the pictures my camera took make the screen look pretty bad, but it doesn't look that way in person. It's like my camera really picked up on some odd pixelation in the dot mask or something,
Here you can see the test pattern and how the image is a bit off center and bows on the upper and lower right corners
Picture of Castlevania X running. Looks pretty good but you can see the bowing in the lower right.
Link to the Past running. This looks pretty nice because it doesn't go 100% to the edges so the bowing isn't noticeable.
Here you can see the text in the lower right and left of the screen is a little blurry. No idea why or if it's fixable. I hear that's an issue with these slimfits because of the short backs on them. It's annoying but not unreadable (looks worse than it really is in this pic):
I don't have my remote yet so I haven't tried the service menu. Does anyone know if these issues are fixable in the slimfit's service menu? Overall it's not a bad little TV, especially for free. One odd thing I noticed is that the image in the lower right corner where the bad bowing is will sort of fix itself if I move the cursor in my SD Cart menu down to the bottom (where the image starts to bow). It's kind of weird and makes me wonder if the bowing is due to something else going on with the tube.
UPDATE:
It appears that the bowing has something to do with the component input and the Shinybow I'm using to go from RGB to Component. If I hook my SNES up via S-Video the bowing mostly goes away:
