The Sentry
This episode gets a lot of bad press, mainly because of the ridiculous lizard suit with it's giant goofy head. It's actually a pretty decent episode. Kolchak has some wonderful on-screen chemistry with his real wife, the actress Kathie Browne. Tom Bosley has an amusing cameo. Also, the opening scene with Carl fleeing down an endless corridor on an electric cart--nervously glancing behind him from time to time--is suspenseful.
The setting with a relentlessly hostile monster preying on men in an isolated, claustrophobic location is a familiar one: The Thing, It! The Terror from Beyond Space, and Alien all used it to great success. The Sentry for all it’s faults ultimately succeeds by relying on some seasoned formula