Originally Posted By RKPhelps
all my devices are new 2017 models. Everything works fine if I wire from the blu-ray player to the TV, but if I add the 976 between the two I’m having issues. The reason I bought the 976 was to handle older dvd’s & blu-rays from my collection and 4k blu-rays going forward. I should not have to limit my TV for the 976 to handle the video.
I don't have that TV obviously, but I have the Oppo 203. I'm not having any issue, paired with the 976, for any discs I play.

I was thinking of the HTPC you mentioned maybe not being compatible with HDMI2.0a, or even the standard mode on the Sony.
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Main HT <> 976 <> 7200 <> Ultra-X12 <> sapphire ST2 mkII RF/LF <> sapphire SC center
sapphire ST2 mkII SBR/SBL <> sapphire SS SR/SL <> Verizon/DVR <> Vizio M70Q7 <> Oppo UDP-203 <> Amazon 4k Fire TV