It was very popular and had lasting influence – there was a remake as recently at 2005.
As a sci-fi fan I regret that I’ve never seen it. I think the original would seem a little quaint by now, but the later serials and remakes are more modern and hopefully, around this anniversary, they will be available in some form.
It’s fitting that this anniversary falls in the same year as the 50th anniversary of Dr Who. Without the success of Quatermass would we have the Doctor?
Cover art from Goodreads.