text: The ongoing bond between the two series was eventually cut in 1986, as the tenth-season premiere of Dallas declared Bobby's death the previous year had been a dream. Bobby's death had had some influence on the Knots Landing storylines as well, with Gary grieving for his dead brother while Gary's wife Abby (Donna Mills), who had lost her brother Sid (Don Murray) a few years earlier, consoled him. Abby and Greg Sumner (William Devane) then took advantage of Gary's grief and Gary's journey to Dallas for Bobby's funeral to gain politically at Empire Valley. Val also named her and Gary's son "Bobby" in memory of his late uncle. Unlike the Dallas producers, the Knots Landing producers were not prepared to reset their series, resulting in the producers cutting ties between the two shows. As a result, there were no further crossover episodes or storylines; Bobby's return was simply never addressed on Knots Landing, nor was he mentioned again (ironically on Dallas, however, mentions of Gary increased, and archive footage of Joan Van Ark appeared in Season 12). However, Shackelford and Van Ark did reprise their roles for the Dallas series finale "Conundrum" in 1991, which showed what would have happened to their characters if J.R. had never existed.
  Between Seasons 1 and 4 of Knots Landing, there were nine episodes where Dallas characters appeared, played by their respective actors.
  Season 1 (1979–80 season)
  Episode 1: "Pilot". Guest starring Patrick Duffy as Bobby Ewing.
  Episode 2: "Community Spirit". Guest starring Larry Hagman as J.R. Ewing.
  Episode 6: "Home is For Healing" Guest starring Charlene Tilton as Lucy Ewing.
  Season 2 (1980–81 season)
  Episode 5: "Kristin". Guest starring Mary Crosby as Kristin Shepard.
  Episode 9: "A Family Matter". Guest starring Larry Hagman as J.R. Ewing.
  Episode 13: "The Loudest Word". Guest starring Patrick Duffy as Bobby Ewing.
  Episode 17: "Designs". Guest starring Larry Hagman as J.R. Ewing.
  Season 4 (1982–83 season)
  Episode 2: "Daniel". Guest starring Larry Hagman as J.R. Ewing.