How we first discovered the difference between XX and XY

Throughout history people puzzled over what exactly determined a whether a baby would be a boy or a girl. Theories tended to range from the woman's diet, to the ambient temperature of the room. Until one woman, studying mealworms, finally determined what was the difference between little girls and little boys. » 11/18/12 8:00am 11/18/12 8:00am

TV This Week: Sarah Connor's Last Stand!

The biggest thing on TV this week is tonight's two-hour season finale for Terminator: The Sarah Connor Chronicles — which may also be a series finale unless the show manages to bring a few million more viewers back in time. But there are also new episodes of Lost, Kyle XY, Stargate: Atlantis and Torchwood... plus some… » 3/03/08 9:00am 3/03/08 9:00am

TV This Week: Watch Summer Glau Do The Cat Dance!

These days, the networks are bending over backwards to promote their shows online — and not just with crappy Flash games and viral-marketing mysteries. We have new promo clips for this week's episodes of Lost, Sarah Connor, Kyle XY and Jericho. You can get a pretty good flavor of which shows will be exciting (Jericho)… » 2/25/08 9:00am 2/25/08 9:00am