The comic strip began as Robotman in 1985. It originally depicted the exploits of a small robot who believed he was an extraterrestrial visiting Earth, living with the ordinary Milde family. In the 1990s, Robotman left the Milde family and began living with a geeky inventor named Monty.
Robotman's origin was later retconned to having been designed and built by Monty and given false memories of being an alien.
Read more about this topic: Monty (comic strip)