That ’90s Show tries to pick up 15 years after the end of That ’70s Show, but Leah Foreman’s age already throws the timeline into chaos—her 15th birthday in 1995 doesn’t align with Eric’s absence in Africa at the end of the original series. Add to that Jackie and Kelso’s son Jay being old enough to drive despite the couple being childless in the finale, and the spinoff may have already created one of the franchise’s biggest continuity mistakes—let’s watch the video to see how it all unravels...