Well I haven't watched that one yet, I have seen the ones that use acetone to in a small way remelt the surface. There is also the polishing technique using progressively smaller particles. these methods need to be followed up with a uv blocking clear coat. Um, maybe this is the one where you just use WD-40 and call it a doneer.
Can't wait to see how this video makes this happen. Just not interested at the moment, but maybe later. I would like to do something about mine. WD-40 only works for a day or so.