Samsung QN55Q8F. Just got this today. I only have my SNES running through the OSSC but it looks, and works, amazingly.
TV: Samsung QN55Q8F
Console: SNES 3-chip model. (De-jitter mod installed).
HDMI Switch: ViewHD VHD-UHD4X1A 4×1 HDMI switch with optical audio breakout cable.
OSSC Settings: All modes work, including 5x. I still need to fine tune the settings, but this is jaw dropping.