Oppo 105D video vs. Oppo 205 video - my 205 video doesn't look right

Anyone else have experience with the video on these two machines. I had to replace my Oppo 83, so I moved my 105D (darby) to my $350 42 inch 720 TV and bought a 205 for my $3,500 4k UHD TV. The problem is, the picture is much better on the 105D with the cheap TV than the 205 on a better TV.

Oppo offered a few suggestions which improved the picture, but it still looks poor. Contrast is weak, especially in dark scenes; many images look like they have a white fog over them; focus is soft. I'm really trying to love this machine - it is Roon compatible; great sound; separate processors for stereo; nice headphone amp.

I have a few days left to return it to Best Buy, but would rather figure out how to get a good picture.

Any thoughts are welcome.

Thanks,

Mike