A:AnswerYes you can wall mount this tv, I currently have mine on a fixed mount. I suggest you make all necessary connections prior to hanging it on this style of mount otherwise use a articulating mount to make things easier when connecting cables.
A:AnswerA One Connect Box is included with The Frame Series and an Attachable Slim One Connect Box is included with our 8K Neo QLED Series and S95D OLED.
~ Samsung Specialist
A:AnswerYou simply go to home/apps, and YouTubeTV is there ready to install.
I LOVE this TV, but I have no idea if the lower-priced OLED would have worked just as well for me.