Dochartaigh recently posted an excellent tutorial that describes how to find and use the proper TVOne boxes for use in downscaling to 240p: https://shmups.system11.org/viewtopic.php?f=6&t=63226
“Downscaling” is something that’s often misunderstood and in my opinion a very good way to preserve a “classic” or “arcade” feel on newer games. It’s also a good method for playing newer games on CRT monitors, for a more “retro” experience. I originally used an Extron Super Emotia for this, but those devices have gotten so rare and expensive that it’s no longer feasible to try and purchase that as a solution.
Dochartaigh measured the TVOne’s processing lag at about 1.5 frames and I was able to measure the Super Emotia’s lag at about one frame or under (variable). Both are decent, but of course a zero-lag solution is always preferred.
Overall, the TVOne’s seem like a good choice for downscaling!
