Hate to say it, but your aspect discretes didn't work on my 58PX600U. I even tried clean codes from MakeHex. I was really hoping that they would work. What model do these work on?

One note: Your code for Full and 4x3 are the same device and function number (128.4, function 199). So, they should do the exact same thing and aren't separate codes. At least this is what IRtool tells me :).

Okay, I've gone through 128.0, 128.1, 128.2, 128.3, 128.4, and 128.9. No sign of aspect discretes. Does anyone have an idea where I should look next? It isn't going to be fun going through all 256 * 256 combinations.

thanks!