I had a look through a .pdf manual for 55”/ 75” 4K ULTRA HD LED/LCD SMART TELEVISION MODELS: VPS55UHD/VPS75UHD.

Those models list support for HDCP 2.2 and HDMI CEC (i.e. controlling connected devices via HDMI).

I'd be very careful though. The staff don't seem to know anything about such things and it is likely to vary between models.

No mention of HDR in the manual.

I am pretty sure it doesn't support HDR.