Dallas - Season 12 - Eps 12: The Switch
Cally asks Sue Ellen for advice on helping to deal with J.R. Bobby wants to know what Carter is up to. Cliff believes that April's working against Ewing Oil. Nicholas' father decides to investigate his death.
About Dallas

Title: Dallas
First Air Date: 1978-04-02
Last Air Date: 1991-05-03
Status: Ended
Rating: 6.804/10 (from 212 votes)
Language: EN
Seasons: 15
Total Episodes: 357
Network: CBS
Genres: Soap, Drama, Family
Production Companies: Unknown
Synopsis
The world's first mega-soap, and one of the most popular ever produced, Dallas had it all. Beautiful women, expensive cars, and men playing Monopoly with real buildings. Famous for one of the best cliffhangers in TV history, as the world asked "Who shot J.R.?" A slow-burner to begin with, Dallas hit its stride in the 2nd season, with long storylines and expert character development. Dallas ruled the airwaves in the 1980's.
Cast

Patrick Duffy
Bobby Ewing

Kimberly Foster
Michelle Stevens Ewing

Larry Hagman
John Ross ( J.R. ) Ewing

Ken Kercheval
Cliff Barnes