PM me for a commission. Or if you're good at modding yourself it isn't too difficult really. All you need to do is pick up a cxa2075 chip. Then you need to buy a sop to dip adapter for it. Then solder it into the adapter and solder the adapter into a precision socket or a breadboard. Then solder up the ntsc internal trap application circuit from the cxa2075 datasheet. I used this pinout sheet to find out where to tap r, g, b, sync, and colour subcarrier from the encoder that's built into the snes jr.
Then you just wire everything up and assuming you wired and built things right you're good to go. Another note...using a 75 ohm resistors on the luma output was a little dark so I used a little less resistance than that. Also the snes jr has an issue with the chroma line I use a 470 ohm resistor on the chroma line before passing it through the 220 uf cap otherwise you get diagonal bars on chroma. Don't worry using 470 ohms doesn't weaken the chroma line.
The non portablizer! Specializing in....Video quality?