I... can't deal with the awful video of the RF unit any more. But I have zero skills with soldering and am in no mood to experiment with my nes that I've had for 30 years. Do any of your nerds know a good modder? I don't really know who to trust with my baby over the internet. Composite would be better than nothing but hdmi would be even better.
You'll want to do a recap & RGB mod: ($260)
Classic Video Game Console Modifications, Restorations, & Repairs.
1uprestorations.com
NESRGB:
Outputs RGB, S-video (encoded from RGB), composite video (encoded from RGB), and composite video (original from PPU):
Depends on the route you want to go. You can get a nice DIY NESessity v1.6 Replacement PCB for NES Console:
A new design PCB for the Nintendo Entertainment System with new features. Bare PCB set with Digikey parts list
www.tindie.com
Honestly tho, if you're not into emulation, just get something like a
Hyperkin RetroN 3 for under $100 on Amazon that reads carts from any region. Reads 3 carts (NES/SNES/Sega), has an aspect ratio switch & HDMI port, etc. Plus you can get Everdrive clones (MicroSD carts for ROMs) for cheap off Aliexpress, that way you can preserve your OG hardware!