[1] In the episode, the Lost in Space robot says: "It is more than a machine...it is a robotoid."
[2][3][better source needed] The episode is described as: "The family's robot is seemingly replaced when Will repairs a robotoid from an advanced civilization - until the new machine wreaks havoc by trying to take over the ship.
"[4] Piers Anthony's short story Getting Through University, which may have been published as early as 1967/1968 in the science fiction magazine Worlds of If, mentions a robotoid.
[5] In April 1968, Marvel Comics released Avengers #51 which introduced the Robotoid.
[6] On December 20, 1978, the Battle of the Planets TV series episode Rage of the Robotoids was released.