Most dramatic restoration vid?

What is the most dramatic video restoration you veterans have seen done on here?

While the open-source community has its drawbacks, I've always loved witnessing the power of the internet collective that brought us things like Wikipedia, Avisynth, codec listening tests and so on.

I wanna know from the more active veterans on here what the greatest accomplishment in video restoration they've seen.

Show me the most seriously messed up video that you've seen completely transformed.