I love Quatermass but I don't want to see a remake or a reboot. It's of its own time and a part of SF history now and that's where it should stay. I think a modern remake would end up like modern Dr Who - too much running about and babbling nonsense.
I don't want to see one of my favourite shows become a travesty of itself. Let it rest in peace with dignity I say.
I only partly agree with you. I think some Hollywood and TV producers in general are bankrupt of ideas, and there are many unused ideas out there, so they don't need all these reboots. However, with the right writers and directors I think and lot of old stuff could be lovingly re-imagined for a more modern audience.
I think we have a rose-tinted spectacled view of some old films and TV. Some of the acting and sets were atrocious. Since you used
Dr Who as an example, there was far more running up and down corridors in the old than in the new. Even my favourite story,
Genesis of the Daleks has most of an hour spent corridor running.
As I said it needs the right director and writers. There is a tendency to make a re-image light, jokey and a travesty, but there have been some remakes that are better than the original. We've had loads of threads on this subject before.
As for Quatermass, even I am too young to have seen them originally, but
Quatermass and the Pit has frequently been shown on TV, and I agree with how frightening it is. Most Horror today is just gore and screaming teenage girls, it isn't actually frightening in the way, for example,
The Spiral Staircase is - but that is a whole other thread discussion.