Matthew from Clovis, New Mexico presents the “Weight Watch Collar”, a pet collar designed to help monitor a pet’s food and medicine intake. Shane from Hanna, Alberta presents the “Headlight Wiper”, a clever automatic windshield wiper for vehicle headlights! Shane leads Team Wright against Matthew and Team Franklin to build the best motorized Robo Butler in the Invent-Off Challenge. But first, the teams compete in a mini challenge to build the sturdiest Viking Catapult. The teams build the catapults and use them to launch squishy balls at their team leaders. The team that catches the most balls wins an advantage for the Invent-Off Challenge. Which inventor will lead their team to victory in the Robo Butler Invent-Off and take the Genius Cup?

Originally released by Big Media Holdings LLC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on February 10, 2017.

Meet Kid Inventors: Matthew and Shane (3:39); --Mini Reward Challenge (4:58); -- Mini Challenge Results (7:02); -- Judging the Final Inventions (3:16); -- Credits: Matthew vs. Shane: Think Big (0:45); .