A:AnswerHigh dynamic range. For the technical answer I would suggest you Google it. For a practical definition it provides a more vivid color contrast, Deeper and brighter colors. On this Samsung tv, "dynamic" is one of the picture mode options found in the settings menu. I have selected this option when viewing a 4k blue ray that indicates HDR content. For non 4K content I prefer the "standard" mode.
A:AnswerThe bolts come with the mounting kit and very per kit. Mine were 3" long. As far as how wide, the mounting plate has elongated holes so that you can mount the bolts at any width. Preferably you should mount the bolts into wall studs for strength.
A:AnswerI will return it . And get the Qled at BJs. Best Buy version is cheaper than Bjs . And also Best Buy have higher price with poor customer service .
A:AnswerThe bolts that fit into the back of the TV are size M8 and then you just need the bolts that came with your mounting bracket. The length of the bolts would matter on the type of bracket you use. I hope this helps.
A:Answerthis TV is a smart TV. you don't need an antenna . all you need is internet service. i am subscribe to you tube TV. this is a great TV with picture and sound
A:AnswerI use the arc hdmi input to operate my sound-bar with out needing an additional remote. To specifically answer the question, yes it has arc hdmi input.
