 However, Cliff and Clair accepted the couple when they met Olivia, who immediately won their hearts and was welcomed into the family.She appears regularly during the first three seasons, and is in only four episodes each of seasons four and five (a picture of her can be seen in the opening credits of season four), she appears regularly in season six, but only appears in a handful of episodes during season seven.The character is loosely based upon Cosby's daughter, Erinn, who was approximately the same age as Denise.