How to Samsung TV UN65MU9000 2017 wall mount with M8 bolt bottom M6 bolt on top for both brackets

This Samsung TV is a:
Samsung Electronics UN65MU9000 65-Inch 4K Ultra HD Smart LED TV (2017 Model)

One needs to mind the plastic spacers which comes with the wall mount kit.
The longer spacers go UNDER the mount on the top M6 screw holes.
The longer spacers to right on the ends of the bolts against the bolt heads on the M8 screws..
Always finish at the END of the screws with a plastic M8 or M8 washer to ride between the metal mount and the plastic TV rear casing maternal.
You don't have to make these very tight and over tightening could protrude the screws into the LCD screen puncturing the rear of the screen with a hole. Avoid this.

Now getting the assembly with the two arms on it up to the mount on the wall is a different matter.

INSPECT THE TWO MOUNT ARMS to make sure the latching screws are retracted.

Might be a good idea to lift the TV with all the cords and wires pre-attached as it a bugger to try
to attach the wiring then the TV is mounted.

It is possible but prepare some choice swear words for the activity.