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tip to set video to ENHANCED rather than STANDARD to pass BTB and WTW.

If you are truly getting YCbCr out of the Panasonic, then these settings should not apply. I have the 55 set to Standard and I get BTB and WTW when passed into the 50Pro. I also have the player set to "lighter".

I suspect the green is caused by color covnersion. ie it is sending one color space but reporting another. I did try the 55 straight into the HD621 and saw green. My display is reporting that it is getting YCbCr.

DVDs do not look so good from the 55. Their chroma is jaggie. Its not the chroma bug.