Search the internet for the Team Negative One restoration of Star Wars. The group got a 35mm theatrical print from the original run, scanned it, cleaned it up, and released it on the internet. It looks great and very true to how it would have been seen at the time. It's the best quality version of the original release that most of us will ever see. It certainly looks like the VHS tapes I saw as a kid (but better quality obviously), and is how I remember it!

Why it took a group of amateurs thousands of dollars, tons of work, and a willful disregard for copyright law is beyond me.

Find it and enjoy it in 1080p while you can.