I recently rewatched the pilot of this (Kolchak vs. vampire) and an episode about an underground city. It was interesting to re-see the sort of thing that freaked me out as a kid, but it's ultimately way too 70s for my taste. A dusty relic, if you will.
Also, that lead actor isn't just "the guy from Martian Chronicles". Dude! That's Darren McGavin. I hope this thread has a thousand Christmas Story fans descending on you in a fury!