Futurama

Season 2, Episode 9

Episode Title: Why Must I Be a Crustacean in Love?

Air Date: 2000-02-06

Overview:

When Dr. Zoidberg runs amok during the Decapodian mating season, Fry sets out to teach him how to woo a mate. Things backfire when Zoidberg's desired mate falls for Fry instead, and Zoidberg challenges Fry to a battle to the death.