Blu-ray: RGB vs YPbPr

[Jonathan Grynspan]

Hi folks. I've been playing with the settings on my BDP trying to get rid of a green/violet line that appears when overscanning is turned off on my TV. Having given up on that (looks like it's the player that's causing it, not the TV or cable) I am now left with another question: which ought I to prefer as the output format for my player, RGB or YPbPr? I know the difference and I know that YPbPr is the native colour format for Blu Ray discs, but when I set the player to RGB output the video becomes much more saturated (in a good way--YPbPr always seemed washed out) and more detail is apparent in the blacks.

Should I chalk this up to the player doing a better YPbPr-to-RGB conversion than the TV? Perhaps something else? If I'm looking for the "authentic" movie experience, should I stick with YPbPr? Any other thoughts on the matter? Bueller?