Learned about it in this video from the YouTube Channel My Life in Gaming. Some of their videos are a bit more technical than the general “retro review” style, which is why I started watching.
In their RGB 300 Video Series, they covered a homebrew project called “240p Test Suite.”
This project includes a number of test graphics and patterns to help in adjusting the settings of a modern TV. Even more impressive are the systems it covers:
- Nintendo Wii
- NSuper Famicom / SNES
- Nintendo GameCube
- Sega Mega Drive (Genesis)
- Mega CD (Sega CD)
- Sega Dreamcast
- PC Engine (TurboGrafx-16) / PCE Duo
Check out this wiki page which lists all the tests and d ownload it for your retro gaming platform.
CD-based systems are pretty easy to run since most of the era didn’t have copy protection. For the cartridge systems, you’ll need something like an EverDrive / SD Card reader for ROMs to make it work.
I’ve got mine on order…