Teaser indeed, the colors on these frames you're posting are simply PERFECT! amazing what good condition it seems to be in. But what others have pointed out, there's something off about these pics, the cinematography of Star Wars was soft yes, but these almost looks like they've gone through some denoising, I hope the reason behind this are down to bad resizing and compression.
Like Harmy said, the marks at the top will the cropping take care of, I think the Special Collection LD is the only home video transfer were you can make out the rounded corners in some parts, that is an example of a transfer that display too much sometimes, but that one was cropped with TV overscan in mind so...