A Clone of My Own
Season 2 Episode 15 – first aired on April 9, 2000
Professor Farnsworth unveils his clone, Cubert Farnsworth, whom he plans to leave everything to upon his retirement. But Cubert wants no part of Farnsworth's lifestyle, prompting the professor into a premature retirement on the Near-Death Star.
Professor: Nothing is impossible! Not if you believe in it. That's what being a scientist is all about!
Cubert: No, that's what being a magical elf is all about!