Step 1 : Introduction to the question "Who shot J.R.?"
...The CBS Television Network captured the attention of 350 million people around the world Nov. 21, 1980, with the primetime soap opera "Dallas.” Audiences waited eight months for an answer to who shot J.R. Ewing, the evil, womanizing scoundrel in the season’s cliffhanger. This episode remains as one of the most famous cliffhangers in television history. The answer to "Who shot J.R.?" was finally revealed, showing that Kristin Shephard, J.R.'s sister-in-law, shot her former lover. Source: History.com