A:Answer The TV, when mounted with this bracket hangs very close to the wall and if the HDMI ports on your TV exit the ‘back’ of the TV, you should get HDMI cables with a right angle connector on one end. If the HDMI ports on your TV exit the bottom or side of your TV, a standard HDMI cable should be fine.
As far as installing HDMI cables, plug them in before you hang the TV on the bracket, as for adding additional cables after the TV is mounted, you may have to remove the TV depending on where the HDMI ports are located.
To provide a little more room between the TV and the wall, you could use the spacers and washers that ship with the bracket.
As far as compability with Samsung TV’s, shouldn’t be any issues. Just make sure you mount the TV bracket onto wall studs for a solid installation.