I was just a little kid, so my memories are scarse. But here are the facts:
1 - It was no animation. It had real people.
2 - It was in color. Maybe 70s or early 80s.
3 - Maybe BBC.
4 - The story, as I remember it, was set in the 18th or 19th centuries. Could have been Victorian style.
5 - I think is H. P. Lovecraft or Edgar Allan Poe inspired.
Thanks a lot.