Community content is available under CC-BY-SA unless otherwise noted.
Uncle Grandpa 101 is an internet short that was posted on Cartoon Network's website on September 19th, 2016. And On iTunes In September 8th, 2016.
Uncle Grandpa teaches a class of Uncle Grandpas on how to be like him.
When a Uncle Grandpa classmate took out his Proto-Bag, it was still on him.