I believe these are AI-generated photos, and perhaps content. Look at the back of Dave Compton’s shirt carefully, and you’ll notice that the left side starts to have garbled text. It’s very impressive, though. If I’m wrong, and these are real, then I’m very interested why Dave was wearing that shirt. Back in the day, it wouldn’t have been normal to have a custom shirt like that with different font sizes with your own…
I don't think so. Perhaps AI-upscaled? The footage looks legit and would track with the tube cameras that would have likely been used at that time. Although it sucks that it's deinterlaced to 30fps. Video like this really needs to be preserved without immediately throwing out half of the motion
I could see a cheap restoration introduction artifacts as a more likely reason for the look.