Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the best sci fi serials, whatever the name on it

Actuallly, I've already reviewed this under it's original title, THE UNDERSEA KINGDOM. This is one of the greatest with "Crash" Corrigan as the hero, Lon Chaney Jr. as a secondary villain, and Lee Van Atta. I would've given it five stars if the cheating in the most spectacular chapter ending in the serial weren't so flagrant.