From my testing on the C9 (don't have my 48CX yet), Game picture mode outside of PC Input, such as Console Input, the colors/gamut are proper and gamut can be chosen. It's ONLY a PC Input/Game picture mode problem... but unfortunately that is the input/picture mode combination that is best for PC gaming. 4:4:4 chroma+lowest input lag+allowing BFI.If I dont care about 4:4:4 and PC Mode, are gamut / color ok in Game Mode OUTSIDE of PC Mode? Can it be chosen freely? It was locked to wide in SDR on the C6. Very annoying.
I don't really see a difference between 4:4:4 and 4:2:2 from my viewing distance in games. In text, yes, but I dont plan on using my TV as a giant eBook reader.