This is the original only release from Summer 1977. I have it “on tape” if I can find a VCR player, but those are harder to find.
In May, Star Wars had a limited theatrical release. After its success, a wider release of the film included a few special-effects changes and reformatted credits. Three different audio versions (a Dolby Stereo mix, a six-channel mix for 70 mm screenings, and a mono mix print) were created, with significant differences. Notably, the mono mix print featured several alternate and additional sound effects and lines of dialogue.
So which one is he going to use?