A:AnswerI wound up buying a Universal screw set for SAMSUNG TV's from Ebay tat came with washers and spacers
and mounting the TV was no problem at all. made things really easy
A:AnswerThere are options to customize the captions, including the size, background, opacity, colors and so on. Very satisfied with the ability to customize the closed captions
A:AnswerThe remote pairs to the individual TV automatically. They pair when setting it up. No need to use a or b. I bought two and not an issue whatsoever.
A:AnswerThe Samsung NU8000 is marginally better than the Samsung MU8000 for almost every usage. The Samsung NU8000 has slightly better input lag and includes the FreeSync variable refresh rate option, which is great if you play video games. Also, the Samsung NU8000 has marginally better SDR peak brightness and slightly better reflection handling.