Although the picture quality of 1960s black and white BBC productions (e.g. pre-Pertwee Dr Who) don't really suffer from transfer to VHS and the trouble with the modern DVD versions is that you can see more than you are supposed to. The original cybermen (as in my avatar) look even spookier when you can see the actor's eyes moving behind the mask.
I just did a quick bit of research, wondering if any of the old episodes were shot on film so they'd stand some chance of looking decent in high definition. As I remembered them, interior scenes always had that bland videotape look and exterior scenes had the grainy look of film (much like
Some Mothers Do 'Ave 'Em, and maybe most programmes of that era, now that I think about it! :lol: )
It turns out the only Doctor Who story ever shot entirely on 16mm film was
Spearhead From Space, the first Jon Pertwee story and also the first colour story. And now it seems to be the only "old" Doctor Who story released on Blu-ray (so far).
Speaking of Cybermen, a friend of a friend played a Cyberman, many years ago. He wasn't an actor, they just auditioned for very tall people! Don't know which story or stories he featured in, but he'd be in his mid-seventies now (if he was still alive) so I guess it was pretty early on.