Originally Posted by caa100
If you have all components set for xvYCC, you should be OK.
Yes, there are not any discs that are Deep Color encoded, but your components are matched and using a common color space.
In other threads, I have seen this analogy:
Think of it like watching a black and white movie on a color TV. The BW is not screwed up by watching it on a color set; the extra capability is just not being utilized.
But the xvYCC setting DOES affect the PQ if it's set to ON, even if the source is NOT outputting xvColor. All the super-white option in the PS3 settings does is extends the limitation level from 16-235 to 0-255 so you can see levels below 16 and levels higher than 235. To prove this, if you enable this option, the PS3 passes BTB and WTW. However, that doesn't necessarily mean that its actually OUTPUTTING these levels... essentially, the PS3 is still outputting 16-235 as ALL Blu-Ray and DVD movies are outputting 16-235 (and will continue to do so for a LONG time). This option is safe to enable because you will see no noticeable change in PQ (unless the source does support xvColor, in which you would see a better range in colors). So at this point in time, it's safe to enable super-white, although its not essential as there is no material that actually outputs xvColor.
Now, as for the xvYCC setting on TV's, it does the same thing... it increases the limitation from 16-235 to 0-255 BUT, since the PS3 is still essentially outputting non-xvColor (16-235), the TV seems to be mapping 16-235 -> 0-255. This makes sense too, because when I enable xvYCC on my TV, colors seem washed out in comparison, probably because its taking a smaller amount of available colors, and expanding it to a larger range. so again, if what you are OUTPUTTING supports xvColor, then it's recommended to enable xvYCC... otherwise you should leave it OFF. You may have read articles on the web regarding xvYCC/xvColor saying that if all the devices in the chain support it, then you can enable it, but that includes the source material.
As for Full vs Limited, it appears as if the PS3 is mapping 16-235 to 0-255 when you set your PS3 to FULL. To prove this, even if I set my PS3 to FULL, my TV to Normal and set BR/DVD to output RGB, I still can't pass BTB and WTW, meaning its just mapping 16-235-0-255 and its not actually displaying levels below 16 or above 235. So again, my recommendation is Low/Limited rather than Full/Normal because it appears as if the PS3 natively outputs 16-235 RGB (in the XMB anyway, I still dunno about games and theres no way to find out).