MST3K Episode 301 "Cave Dwellers" is the sequel to Ator The Fighting Eagle. Ator was also given the RiffTrax treatment by fellow MST3K alumni Mike Nelson, Kevin Murphy, and Bill Corbett.
Crow says "Try Clear Eyes" in a dead-pan tone when a statue's eyes bleed. This is a nod to the commercials where Ben Stein is the spokesman for Clear Eyes eye-drops, who, as is usual in any role he plays, speaks in a dead-pan.
Crow quips "And now, you know the rest of the story". This was a catchphrase Paul Harvey used on his radio show "The Rest Of The Story".