TV Series Identification: Each episode tells an isolated and closed story of light terror/fantasy, much like the style of "Tales from the Crypt" (or this way I remember, I was younger).
In one episode a writer invokes a demon, holds him in a circle of protection and forces him to help to write a book telling what the daily routine of hell is like. In another episode, a cave scientist (speleologist) or a miner finds a creature in a cave that appears to be a troll. In the end the man manages to escape causing a ray of sunlight to enter through the ceiling of the cave and transform the creature into stone. The series predates the 2000's. I've been trying to review this series for years and I can not identify the name to look for it. Thank you any help.