They introduced the parents of  Lucy Ewing (Charlene Tilton), who had not been shown on-screen until that point. After the success of Dallas, Jacobs' presented his initial idea again and created Knots Landing, with some alterations of his original script.
Jacobs incorporated the parents of Lucy Ewing (Charlene Tilton) into the storyline, who were previously unseen. Following the success of Dallas, he revisited his initial idea and restructured it as Knots Landing, making a few changes to his original script.