Just gave "Hickory, Dickory, Doom" another listen and I will have to revise my earlier assessment of this episode. I REALLY enjoyed this more the second time round than when I first heard it. I have better quality headphones and the sound is more crystal clear than before.  I agree with the others about the medium's voice- it would have been less annoying maybe if she had a lower-pitched voice.  This story would have made a great episode on the original "Kolchak, the Night Stalker". Or even "Night Gallery". If the clock was a "gateway to hell", shouldn't it have been hot air rather than cold coming from it? I always thought that cold air indicated the presence of hauntings(ghosts) rather than demons. Wonder if anybody has or heard of anybody having had bad luck with their class rings ?  Both my sister and I had bad experiences whenever we wore our rings and she tossed hers in the trash and I've refused to wear mine ever again!