Hello Brand,
One quick and easy way to mount a cabinet onto a wall is through the use of a wedge bracket called a French cleat. This will give you a very neat flush mounting. you just need a saw table or skill will work, 3/4" wood Pine is EZ to cut and cheap but any wood will do even an old 2x4,
I used this system to hold the top of the set in, then added a dowel pin that would hold the bottom you need to push up the TV about 1/4" to remove it. You could also just hang the set with this system but l like the idea of keeping the set tight. Here are two photos to give you an idea. You could also go to this link. http://benchmark.20m.com/plans/FrenchCleat.pdf