VCRs that will last forever

[breetie]

--waltchan:

I just finished restoring a Mitsubishi HS-U80, HS-U82 and an HS-U65. It took some doing, the HS-U80 had suffered terrible indignities at the hands of someone who attempted to fix it, but apparently gave up half way through disassembly. I had to buy an HS-U51 (it may have been an HS-U52 now that I think about it) to salvage the parts from. In any event, it just got a new head, so the machine is amazing, for what it is. I had a few S-VHS tapes some friends made of my R/C races. I had no idea the image was as clear as it was in S-VHS. I was impressed, I honestly didn't expect that from it.
At any rate...are there any notable differences between the HS-U82 and the HS-U80 from your perspective? And, would you happen to know a website or forum post that deals with the various technical capabilities of both as an itemized list? I've been looking for a history on Mitsubishi's machines, as well as production dates and various changes in design that might have occured with these models.