have a 2 year old 1080p e600i-b3 vizio. I tested the ossc just for giggles on it as i have most of my stuff hooked up to my gaming monitor. so as much as a surprise 5x mode works (snes). It gives the perfect amount of overscan and looks absolutely glorious.
so I will do further testing in the future when I get more cables to test other systems.
and yes 5x!