I would like to see this 480p image that is claimed to be higher resolution than a 1080p, I am not sure I am getting this. But I said I am no expert, I will trust that it is so.
The point he's trying to make is that a shitty HD TV will look worse than a good SD one. Resolution is not the most important aspect of your TV set, and 4k is somewhat of a marketing gimmick right now.