Well, I've considered this as well, thing is: I need to do everything legally, since I'm running a company, protecting the IP of others and everyone knows to find me.
If I break the rules, I won't hear the end of it.
That said, I'm fine exploring 'gray' legal areas.
I may have found a legal loophole to legally obtain sharing rights to some of this old content, which I could then enhance to 1080p in the best way possible, with a few caveats.
I would need to own a legal copy myself, on a 'verified medium'. In other words, I'd need to have the original VHS / DVD, not a downloaded file.
This can either be shared among a small group for free, or for a larger group, but then there are fees involved for the sharing rights.
Then there's costs involved: the software to improve the content: $200, that's something we can't ignore. And then there's the media for original content, unless people have this lying around, it would also need to be bought. Usually $25 +shipping. Add to that, that one computer will be busy for 2 days per disc.
I don't mind putting in the effort for encoding it and letting my computer run all the time, but paying for the license and media is taking it a step too far, at least if it's just for myself.
If there are others interested, and the group is large enough, it may become worth it to restore some of the glory days of huge boobs.