A:AnswerH.D.R
High Dynamic Range
https://www.google.com/amp/s/www.nytimes.com/2019/08/16/smarter-living/hdr-is-coming-to-a-tv-near-you-heres-why-you-should-care.amp.html
A:AnswerLEDQ80 is 4K TV and will up scale to near 4K. The LEDQ80 is a very nice TV and can be had at very good price. The 8K TV are the very new stuff and very expensive for now.
A:AnswerI just picked this TV up a couple of weeks ago. I have a SONOS soundbar and the Lipsync issues were off until I used the TV’s sync settings and my sounbar settings.