Professor Plyborg is the name of Roberto's grandfather who lives in a robot factory. His first appearance was on Roberto the Robot.
Roberto the Robot
The Fix-it Machine
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.