The laser rifle carried by the security guard is the same prop used as Mr Freeze's freeze gun in Batman (1966).
The second episode of the series to use soundtrack music from Miracle on 34th Street (1947). The first was Return from Outer Space (1965).
The wind-up monster makes a sound uncannily like the TIE fighters in Star Wars.
Dr. Smith is mistaken for a toy that looks faded and needs to be touched up. Three decades later, Jonathan Harris portrays an artist who touches up old toys in Toy Story 2 (1999).