Fixed to Wall – The TV will just sit in a fixed position on the wall, parallel with the wall surface. You can get “slim” or “low profile” fixed brackets which mean the TV will not stand off the wall as much (approximately 10mm rather than about 30-40mm in a typical bracket ) but if you intend to use a TV with rear facing AV sockets and inadequate recess in the chassis, you will need to make other considerations to allow use of these rear facing connections so sometimes it isn’t worth the trouble. What you do not want is for your cable to be kinked and squashed between the TV and the wall.
Full Motion – These are typically your more expensive ones because they allow the TV to be pulled away from the wall when mounted, tilted up or down or turned left or right. They do this by having a bracket mounted to an arm or dual arms which are attached to a base that is fixed to the wall. They will typically not sit as flat against the wall as a fixed mount but if you need the motion of the bracket, this is what you would get. Also tilting types these are like fixed brackets with the exception that they can allow the TV to be tilted after mounting the TV. Apart from selecting the type of bracket that you need.
Load rating – The maximum weight that the bracket is designed to support. You can find the weight of your TV in the back of your manual, it should be about 25Kg.
Mounting TV – This is important to ensure the bracket will suit the mounting bolt pattern on the back of the TV. You will see mention of VESA such as 200×200, 400×200 etc. Your TV manual will have the bolt spacing of your TV. It describes the distance the bolts are apart horizontal and vertically, expressed in millimetres (mm). The size suggestion is only just that, There are so many mounts out there even at Bunnings, particularly fixed TV wall brackets.
Wall Plates – You can use reveres bullnose and inverted bullnose with brushes wall plates for the concealed in-wall cabling. You can also use recessed power point (get an electrician to do this) and AV cabling. If not mounting on a typical stud wall but are instead mounting on concrete or brick you can then look at a few other solutions.
TV Height – Also roughly how high did you install your TV on the wall, Start with the middle of the TV being roughly at your eye height when seated, approximately 1000mm -1100mm and then adjust to suit your preferences from there. I have 5 displays in the house and they are all at different heights depending on the situation but if you have no idea where to start, you can use eye height as a starting point and go from there.
And lastly Cable Clear is a great way of having cables in walls for protection, HDMI upgrades and additions (Bunnings) www.cableclear.net
Excellent info here on wall mounting a TV- https://tinyurl.com/snxfxyb