Lincoln Mark series III, and later a Continental Mark IV, on the TV series of the same name. A 1977 Continental Mark V was used in the 1996 Alanis Morissette music video for her song "Ironic." A 1978 Continental Mark V was driven by Ewing family patriarch Jock Ewing, played by Jim Davis, on the TV series "Dallas". Additional Marks were used by other characters later on including J.R. Ewing, played by Larry Hagman, who replaced his Cadillac Allante with a Mark VII in the show's final season. A 1979 Continental Mark V was driven by car dealer (Knots Landing Motors owner) Sid
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),