This thread is awesome...I had the original Tru3D kit with the early date (I guess that company is long gone now), and didn't even have my Samsung 61" LED DLP hooked up for over a year. I did a big remodel, which included adding video matrixing. Of course I couldn't get anything to work with the Geffen piece. Once I found this thread and did the workaround, DirecTV and Roku 3D content work great.
What is the current verdict on DLP-Link glasses? Monoprice sells a set, and there are low cost options on Amazon. I have a set of Xpand and Optima but would like to add a few more.
UMR on HDR vs 4K: The benefit of greater saturation and luminance capability is...not very evident in all images unlike more pixels which can be seen in every scene.