S03E15: I Dated A Robot

Fry falls in love with Liubot (guest star Lucy Liu, "Ally McBeal"), a virtual humanoid downloaded from a computer. Disapproving of Fry's affair with a virtual woman, Bender and Leela steal the original head of Lucy Liu from the internet company, Nappster.com, where she is being held against her will. Seeking revenge, the Nappsters unleash a mob of illegal Lucy Liu downloads to take over the city.