A House Divided (Dallas) A House Divided (Dallas) "A House Divided" is the 25th and final episode of the third season (1979–80 season) and 54th overall of the American television series "Dallas". It is the episode known for spawning the eight-month "Who shot J.R.?" hysteria. The episode ended with the mysterious shooting of J.R. Ewing (Larry Hagman) in his office by an assailant that would not be revealed until the following season. The episode served as both an introduction to the now common practice of season-ending cliffhangers and the beginning of an eight-month international media frenzy. The mystery was resolved in the fourth episode
Dallas (1978 TV series) "Scenes from a Marriage". However, CBS wanted a "saga-like" show, resulting in Jacobs creating "Dallas". When the series proved to be a hit, CBS reconsidered Jacobs's original idea, which evolved into "Dallas" spin-off series "Knots Landing", premiering in late 1979. "Knots Landing" followed the lives of Lucy's parents, Gary (Ted Shackelford) and Valene (Joan Van Ark), as they move to California to start a new life following the start of their second marriage in 1979. During the early seasons of "Knots Landing", several "Dallas" actors (Larry Hagman, Patrick Duffy, Charlene Tilton, and Mary Crosby) made guest appearance in the new