A:AnswerThis type cable is good for non 4K content (i.e, 1080p blue ray and cable box hdmi outputs) this would need to be plugged into the HDMI 1 or 2 on the back. However, if you have a 4k Blue Ray player you need a HDMI cable 2.2 to plug into either the HDMI 3 or 4 slot.
A:AnswerHi Charlie! I apologize for the inaccurate information! We're working on a firmware update to enable HDR10 through HDMI for 50H6C. The firmware is expected to be released soon.
A:AnswerIt comes with a 4YR Mfg warranty. You register the TV during the initial TV Set from the TV when hooked to the internet.
Warranty Info:
https://www.hisense-usa.com/television-4-year-warranty
