<P> In the unaired pilot for the American version of Red Dwarf, Holly was played by Jane Leeves . </P> <P> Holly is an "intelligent" computer . Holly's user interface appears on ship screens as a disembodied human head on a black background, and can also be downloaded into a watch worn by Lister, Kryten's chest display, and on a motorcycle speedometer when the crew visited Waxworld . In Series I his face appears pixelated, but this idea was dropped in Series II . As a male, Holly appears to be approximately 50 years old and has receding brown hair . </P> <P> After meeting his female counterpart, Hilly, in the series 2 episode Parallel Universe he fell so madly in love with her that he had a "computer sex change" and based his new face on hers . As a female, Holly appears to be approximately 30 years old and has shoulder - length blonde hair and red lipstick . </P> <P> In series VII--VIII, the upgraded male version of Holly appears to be around 60 years old with receding grey hair and a bald patch . </P>

Why did holly become a girl in red dwarf
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