That's all of 480 lines with more common 400 lines most see so you take that to 1080p and it SHOULD look pixelated.

Wait for it. What? For it to dawn on you that you blew up the video so large that you get pixelated views.

Be sure to view it at exactly 1 to 1 scale.

PS. This area has been discussed to death. Please take advantage of the many web pages about it.