Constance McCashin, who played Laura for nine seasons, refused to participate in the special or allow her clips to be used. The "Knots Landing" set had long been destroyed and no blueprints were known to exist. Consequently, production designer "James Yarnell" recreated the MacKenzie living room using nothing more than freeze frames from episodes. Nicolette Sheridan was in Europe promoting Desperate Housewives when the special was being taped. Her scenes were shot at a lat ...[Read Story ]