Rimmerworld - S6-E5
Corrected entry: When Rimmer is narrating, he says he discovered a way to make a fully grown female based on his own DNA. Rimmer is a hardlight hologram and as such is made of light, he possesses no DNA to base the female (or male) clones on.
Correction: Holograms are created based on a DNA sample and brain-scan of the crewmember. Although his holographic body doesn't have DNA in the ordinary sense, his lightbee contains all of his DNA data - that's how it knows what to project.
Moose ★