Larry Hagman was briefly replaced by Donna Reed for the 1984–1985 season, before Bel Geddes returned in better health for the 1985–1986 season. By the end of its 14th season in 1991, ratings had slipped to the extent that CBS decided to end "Dallas". Hagman was the only actor to appear in all 357 episodes. He had also made five guest appearances on the "Dallas" spin-off series "Knots Landing" in the early 1980s. Some years after "Dallas" ended, Hagman appeared in two subsequent "Dallas" television movies: "" in 1996, and "" in 1998. Hagman reprised his role as J.R. Ewing in TNT's
Dallas (1978 TV series) the producers, including Katzman's son Mitchell Wayne Katzman as story editor and Leah Markus as story consultant. Markus left after two years, while the others remained until the show's end. Scriptwise, Patrick Duffy's return was explained by having the entire season 9 being a dream of Victoria Principal's character Pam, effectively sweeping away the events occurring during the period in which Katzman's involvement with the show had been minimized. Even the cast were affected by the production and political struggles. While Larry Hagman (J.R.) reportedly supported Katzman, and had played a great part in bringing Duffy back, Susan Howard (Donna),