It appears impossible the get the 'Quantization Range' setting to stick at 'Full'. After a reboot, or even after hibernating, the quantization range will return to 'Limited'. This is on a PC running Windows 8 using the HDMI output.
From what I've read on this and other forums this has been an issue for at least 14 months now.
Watching video on a high quality display with a color range limited to 16-235 is not a very pleasant experience.
Anyone come across a fix, or have we just learned to live with it?