This episode "Seasons of Belief" has to be one of the best episodes of "Tales From The Darkside", due to it's great acting and wonderful plot with a twist at the end. You have TV and movie legend the old vet himself E.G. Marshall(most memorable for his role in 1982's Creepshow)as a traditional father who along with his wife and two kids one boy and one girl who all plan on enjoying Christmas Eve together. Yet after the children open one gift each, they get bored and the E.G. character decides to tell them a story for entertainment. However this little tale is not a Christmas tale at all, but a fright story that at first the kids find funny only to later be frightened by it. The Marshall character tells of a tale of a creature thought to be a myth named Grither who once was on a corner of the North Pole, and the kids are given the terrible descriptions and told that each time the name Grither is mentioned he moves closer to their house! The pace of this episode goes so good that you think this creature is only a myth by the way it's told by the Marshall character only to feel the shock when you find out it's real and the ending is such a surprise twist that it is such a shock! This "Tales From The Darkside" episode works so well due to it's setting at the Christmas season, and a nice plot build up that is scary while leading up to surprise and a clever twist ending. And last but not least you have fine acting from a traditional one like E.G. Marshall.