TV Mount
I have seen a mod where a wood rectangle the size of the back of the cabinet is attached to this cabinet surface with multiple strips heavy duty self-adhesive Velcro, and the TV mount arm attached to this wood piece.
I set the highth of my mounting arm so that the TV bottom can rest on the cabinet bottom for travel, but the TV can be tilted up so the TV bottom can clear to get it out of the cabinet. No velcro needed.
I also made sure when I bought the TV, that it was one with a built-in DVD player. This reduces the "box count" and wiring connections.