When "Ghost Whisperer" returns tonight for its fifth season, it will be five years in the future and Melinda (Jennifer Love Hewitt) and Jim (David Conrad) are the parents of a five-year-old son Aiden (Connor Gibbs). "We felt that we could tell more interesting stories with Jim and Melinda’s child being five years old," Hewitt tells ET's Mark Steines, who is on the set of the hit CBS series. That said, fans of the show will remember that earlier, Melinda didn't want to have a child because she was worried that it would inherit her gift, which brought her a lot of pain when she was a child.