Question: The Ewing family is the core family of a soap opera that aired on which channel ?

full_context: Document 1: Bobby Ewing: Robert "Bobby" James Ewing is a fictional character in the long-running soap opera, "Dallas" and its 2012 revival. The youngest son of Jock and Miss Ellie Ewing, he was portrayed by actor Patrick Duffy between 1978 and 1985, and again from 1986 to 1991. Bobby had been killed off in the final episode of the 1984–1985 season, and Patrick Duffy left the show for a year. Bobby returned to the show in the famous "shower scene" right at the end of the 1985–1986 season. The subsequent "dream revelation" at the start of the 1986–1987 season, wrote off Bobby's accident, his death and all but the final scene of the 1985–1986 season, as a dream of Bobby's fiancée and ex-wife, Pamela Barnes Ewing (Victoria Principal).
Document 2: Dallas (2012 TV series): Dallas is an American prime time television soap opera developed by Cynthia Cidre and produced by Warner Horizon Television that aired on TNT from June 13, 2012, to September 22, 2014. The series was a revival of the prime time television soap opera of the same name that aired on CBS from 1978 to 1991. The series revolved around the Ewings, a wealthy Dallas family in the oil and cattle-ranching industries.
Document 3: Valene Ewing: Valene "Val" Ewing (maiden name Clements, formerly Gibson, Waleska), portrayed by Joan Van Ark, is a fictional character in the CBS primetime soap opera "Knots Landing", a spin-off from the long-running series "Dallas", in which she also appeared. The character originated on "Dallas" in 1978 as the mother of Lucy Ewing and ex-wife of Gary Ewing (the second son of oil baron Jock and Miss Ellie Ewing). Van Ark made several guest appearances on "Dallas" before becoming one of the main stars of the spin-off "Knots Landing" in December 1979, though she continued to make small appearances in "Dallas" for the next several years. Van Ark played Valene in "Knots Landing" for thirteen of its fourteen seasons, which made her one of the show's longest running stars. The character made her last "Knots Landing" appearance in 1997, when she appeared in the reunion miniseries "". In 2013, Van Ark reprised her character for the new, updated version of "Dallas".
Document 4: Miss Ellie Ewing: Eleanor "Miss Ellie" Farlow (maiden name Southworth; formerly Ewing) is a fictional character, from the CBS soap opera "Dallas", a long running serial centered on the lives of the wealthy Ewing family in Dallas, Texas. Throughout her run, the character remains an important part of the show's structure. Created by writer David Jacobs, the role was originated by screen actress Barbara Bel Geddes in the series pilot episode until her departure in 1984. For the 1984–85 season, Bel Geddes was replaced by movie and television actress Donna Reed, who would only play the part for just that one season. Bel Geddes returned at the start of "Dallas"'s 1985–86 season and remained in the show until near the end of the 1989–90 season, when Bel Geddes wanted to retire from acting.
Document 5: Jock Ewing: John Ross "Jock" Ewing Sr. (1909–82) is a character in the popular American television series "Dallas", played by Jim Davis (1978–81); in the made-for-TV movie prequel to the series, "" (1986), he was played by Dale Midkiff. Jock Ewing founded Ewing Oil in 1930 and was the patriarch of the Ewing family.
Document 6: Sue Ellen Ewing: Sue Ellen Ewing (maiden name Shepard) is a fictional character and one of the female leads in the CBS primetime soap opera "Dallas" and its continuation series. Sue Ellen is portrayed by actress Linda Gray and has appeared on the show since its pilot episode, first broadcast on April 2, 1978. "Dallas" follows the trials of the wealthy Ewing family in the city of Dallas, Texas, into which Sue Ellen married when she wed the notoriously evil J. R. Ewing. Gray played Sue Ellen until the twelfth season of "Dallas", when her character finally leaves Texas after beating J.R. at his own game, seen in the episode "Reel Life". However, Gray later returned for the series finale "Conundrum Part II", the subsequent "Dallas" telemovies ("" and ""), and the reunion special entitled "", which aired in 2004, and reunited her with former castmates.
Document 7: Dynasty (1981 TV series): Dynasty is an American prime time television soap opera that aired on ABC from January 12, 1981 to May 11, 1989. The series, created by Richard and Esther Shapiro and produced by Aaron Spelling, revolves around the Carringtons, a wealthy family residing in Denver, Colorado. "Dynasty" stars John Forsythe as oil magnate Blake Carrington, Linda Evans as his new wife Krystle, and later Joan Collins as his former wife Alexis.
Document 8: Pam Ewing: Pamela Barnes Ewing is a fictional character from the CBS primetime soap opera, "Dallas". Pamela is portrayed by actress Victoria Principal, first appearing on the show in the first episode, entitled "Digger's Daughter", which was first broadcast on April 2, 1978. "Dallas" follows the trials of the wealthy Ewing oil family in the city of Dallas, Texas, which Pam has married into. Principal played Pam until the end of the tenth season of "Dallas" in 1987, when the character crashes into a truck carrying butane and propane and her body is severely burned. After this, she is briefly played by actress Margaret Michaels in an attempt to write the character out. Pamela's storylines in season 1 focus on her relationship with her new husband, Bobby Ewing (Patrick Duffy), and her fight against the considerable suspicion and hostility from within the Ewing family, due to Pamela being a member of the Barnes family. Pamela's love for Bobby remains a strong character trait throughout her tenure on the show, noted for its similarities to "Romeo and Juliet", with two people from hostile families falling in love.
Document 9: Ewing family (television): The Ewing family is the core family of the American prime time soap opera "Dallas" and its 2012 revival, as well as the foundation of the spin-off series "Knots Landing". In the original series of "Dallas", the Ewings owned and ran Southfork Ranch and the oil giant Ewing Oil; in the revival series, Ewing Oil is replaced by Ewing Global, formerly Ewing Energies. "Knots Landing" featured the large corporation of Gary Ewing Enterprises.
Document 10: List of Dynasty episodes: "Dynasty" is an American prime time television soap opera that aired on ABC from January 12, 1981 to May 11, 1989. The series, created by Richard and Esther Shapiro and produced by Aaron Spelling, revolves around the Carringtons, a wealthy family residing in Denver, Colorado. "Dynasty" stars John Forsythe as oil magnate Blake Carrington, Linda Evans as his new wife Krystle, and later Joan Collins as his former wife Alexis.
Document 11: Dallas (1978 TV series): Dallas is an American prime time television soap opera that aired on CBS from April 2, 1978, to May 3, 1991. The series revolves around a wealthy and feuding Texas family, the Ewings, who own the independent oil company Ewing Oil and the cattle-ranching land of Southfork. The series originally focused on the marriage of Bobby Ewing and Pamela Barnes, whose families were sworn enemies with each other. As the series progressed, oil tycoon J. R. Ewing became the show's breakout character, whose schemes and dirty business became the show's trademark. When the show ended in May 1991, J.R. was the only character to have appeared in every episode.
Document 12: Barnes family: The Barnes family is one of the main families of the American prime time soap opera "Dallas" and its 2012 sequel. The feud between the Barnes family and their rival Ewing family forms much of the core plot-line of the series.
Document 13: Gary Ewing: Garrison "Gary" Arthur Ewing is a fictional character from the CBS soap opera, "Knots Landing", a spin-off of "Dallas". The character of Gary Ewing was first played by actor David Ackroyd, in a 2-part "Dallas" episode entitled "Reunion", which broadcast in September 1978. Gary Ewing was the second son of oil baron Jock Ewing and Miss Ellie Ewing, the father of Lucy Ewing and the ex-husband of Valene Ewing. Over a year later, the part of Gary Ewing was recast for the spin-off "Knots Landing" with actor Ted Shackelford in the role, and Gary became one of the main stars of the series in December 1979. Ted Shackelford played Gary Ewing in "Knots Landing" for its entire fourteen seasons (1979–1993), while continuing to make occasional appearances in "Dallas" during that time. The character of Gary made his last "Knots Landing" appearance in 1997, in the reunion series "". Shackelford reprised his character for the new, updated version of "Dallas" in 2013.
Document 14: Cliff Barnes: Clifford "Cliff" Barnes, played by Ken Kercheval, is a fictional character from the popular American television series "Dallas". The Barnes family are competitors and sometimes enemies of the Ewing family. Cliff is the son of Willard "Digger" Barnes and Rebecca Barnes, the brother of Pamela Barnes Ewing and the half-brother of Katherine Wentworth. J.R. Ewing (played by Larry Hagman) was Cliff's personal nemesis, with Cliff and J.R. continuing on the bitter feud that started with their fathers, Digger Barnes and Jock Ewing, from their oil wildcatting days in the 1930s. Cliff and J.R. were the only two characters to appear throughout the entire run of the series. A running gag on the series is Cliff's fondness for Chinese take-out.
Document 15: J. R. Ewing: John Ross "J. R." Ewing Jr. is a fictional character in the U.S. television series "Dallas" (1978–91) and its spin-offs, including the revived "Dallas" series (2012–14). The character was portrayed by Larry Hagman from the series premiere in 1978 until his death in late 2012, and Hagman was the only actor who appeared in all 357 episodes of the original series. As the show's most famous character, J. R. has been central to many of the series' biggest storylines. He is depicted as a covetous, egocentric, manipulative and amoral oil baron with psychopathic tendencies, who is constantly plotting subterfuges to plunder his foes' wealth.
ground_truth: CBS