We had to replace our old TV a couple of summers ago. We bought a small one planning on putting it in a cupboard when I realized that the screw positions were standard. I mounted it on the swing out board but then found that the power and cable cords were in different positions. This involved much work, including buying an interesting set of drills to make 1/2" and larger holes. I was lucky in that my neighbour had a hefty electric drill as my little screwdriver wasn't up to it.
I finally twigged that the new TV was 12V after the transformer. However, the old cord had a damaged plug -- melted due to a lot of bouncing over the years with the hotel power on. So we're still on the transformer.
I have another TV at home that we looked at mounting but the mount holes don't allow it to fit on the swing-out and swing.