It's at youtube in 9 parts, with embedding disabled: part 1, part 2, part 3, part 4, part 5, part 6, part 7, part 8, part 9
The New York Times closes its review this way:
In short, what we have in this rendition of Dickens' sometimes misunderstood "Carol" is an accurate comprehension of the agony of a shabby soul. And this is presented not only in the tortured aspects of Mr. Sim but in the phantasmagoric creation of a somber and chilly atmosphere. These, set against the exhibition of conventional manifests of love and cheer, do right by the moral of Dickens and round a trenchant and inspiring Christmas show.
Foster on Film declares:
This British, B&W version of the well-known story is generally considered to be the finest version by critics and viewers alike, and I agree.
We have a couple of quibbles with this one -mainly the big, healthy-looking Tim, whose only claim to frailty is to use a crutch while holding one foot up behind him and hopping along on the other.
Here's Scrooge post-conversion:
"I don't deserve to be so happy. I can't help it! I just can't help it!"