Their son Jack, who cohosts Portals to Hell on the Travel Channel, has a passion for the paranormal, but the Prince of Darkness and his wife, Sharon Osbourne, consider themselves only “skeptical believers,” Ozzy says. Jack “has always been into it, from when he was a little boy,” recalls Sharon. “He used to have posters in his room of aliens.” Now 18 years after the famous family’s reality TV debut with MTV’s The Osbournes, Jack, 34, and his parents are working together again on the Travel Channel’s new series about paranormal activity, The Osbournes Want to Believe. “Some of it is hokey, but some of the stuff he showed us, we’re both baffled by it,” says Ozzy, 71. Sharon, 67, appreciates keeping things light: “It’s nice to do one…
