Forgotten Television Show?

There's a show from my childhood (1990's to early 2000's) that I cannot remember much about but would love to find again. It was about a boy and a girl (possibly brother and sister, and the girl's name was possibly Chloe) who were searching for a man (the girl's father for sure). To do this they would go back in time and become characters from history. I remember that they eventually found her father in Ancient Egypt. Oh and the girl was also paralyzed from the waist down. If anyone could tell me what that show was called I would greatly appreciate it!