Yup! We've got a couple dozen at work because they're so cheap and they make great monitors if you can put up with 4:2:2 chroma (4K60 out of the box wheeeeeee!). Add one of Cirthix's boards and you've got a 42" 4K120 monitor for a fraction of the price of that $5000 30" OLED Dell was supposed to...
So we've got a bunch of Seiki's newer SE42UM TVs at work that we use as monitors. Some poking around has revealed that they have a service menu very similar to the one in the SE50UY04 and SE39UY04 (though I can't find the engineering menu, they probably used a different code). Poking around that...
This is freaking insane. I didn't even know such a thing was possible, but here it is. I may need to pick one of these displays up on eBay...
Edit: We should see if we can put together a list of TV's with the appropriate panels for this custom tcon. Innolux makes a lot of variations on this...