Question: Who owns the channel that Business Nation aires on monthly?

Context paragraphs:
CARBAP: The Rural Associations' Confederation of Buenos Aires and La Pampa (Spanish: "Confederación de Asociaciones Rurales de Buenos Aires y La Pampa"), CARBAP, is an organization composed of 114 associations grouping some of the main 34,000 Argentine owners of land and farms in the most important agricultural region of the country, and therefore it is one of the main private interest business organizations, and a pressure group in that nation.

Moira Gunn: Moira Gunn is host of the public radio program Tech Nation and its regular segment BioTech Nation.  It airs on the National Public Radio.  24-hour program stream, the NPR channel at SiriusXM 122, and public radio stations, among other venues.  Tech Nation episodes are normally based on an interview with an entrepreneur, scientist, engineer, business person, or others.  BioTech Nation is based on interviews with significant people in the field of biotechnology.  while Tech Nation Health was created to address the emergent technologies and science which are affecting the future of health care.  The chief correspondent for Tech Nation Health is Dr. Daniel Kraft, the founder of Exponential Medicine.

Tourism in Buenos Aires: Buenos Aires is in the midst of a tourism boom, according to the World Travel & Tourism Council, which reveals strong growth for Argentina Travel and Tourism in 2007 and in coming years, and the prestigious travel and tourism publication; "Travel + Leisure", a monthly magazine, travelers voted Buenos Aires the second most desirable city to visit after Florence, Italy.  Buenos Aires, regarded as the “Paris of South America”, offers elegant architecture, exquisite cuisine, a legendary nightlife, and fashionable shopping.  Argentina has become famous for its rich European flavor.

KJTL: KJTL, virtual channel 18 (UHF digital channel 15), is a Fox-affiliated television station serving the Lawton-Wichita Falls market that is licensed to Wichita Falls, Texas, United States.  The station is owned by Mission Broadcasting, which also owns low-powered MyNetworkTV affiliate KJBO-LP (channel 35); Nexstar Media Group, which owns NBC affiliate KFDX-TV (channel 3), operates KJTL and KJBO under a shared services agreement.  All three stations share studios facilities located near Seymour Highway (U.S. Route 277) and Turtle Creek Road in Wichita Falls; KJTL maintains transmitter facilities near East 1940 and North 2380 Roads in rural southwestern Tillman County, Oklahoma (near Grandfield).

Al Mesbar Studies and Research Centre: Al Mesbar Studies & Research Center is a Dubai based cultural phenomena think tank concentrating on the study of Islamic Movements.  The Center focuses on "contemporary Islamic Movements, their thoughts and practices, symbolisms and ideologies and especially those that have [an] historic impact which is still in effect today".  It was founded in 2007 by Turki Bin Abdullah Aldakhil.  Al-Mesbar Centre tries to materialize this transformation process through its various cultural, research and specialized scientific activities.  Al-Mesbar Centre pays special attention to studying contemporary Islamic movements in order to unveil the nature of these constructive movements, observe their relations with other movements and their interaction with their milieu, presenting an anticipatory view to its future on all levels, and a view of the future of the nation away from calls of isolation and extremism.  The core of the business is driven from its main monthly activity which is called Al-Mesbar Monthly Book; a monthly publication specialized in studying contemporary Islamic movements.  This publication is distributed by subscription to leaders and decision makers, in the Arab world region, on a monthly basis, and available to public readers after some period of time.

CNBC: CNBC is an American basic cable, internet and satellite business news television channel that is owned by NBCUniversal News Group, a division of NBCUniversal, owned by Comcast.  Headquartered in Englewood Cliffs, New Jersey, the network primarily carries business day coverage of U.S. and international financial markets; following the end of the business day and on non-trading days, CNBC primarily carries financial and business-themed documentaries and reality shows.

Business Nation: Business Nation, which debuted on January 24, 2007, is a monthly hour-long newsmagazine airing on CNBC, focusing on the stories behind the business headlines.  This program also reveals the stories of business, finance, and the economy that touch the lives of all Americans.

Harvard Business School: Harvard Business School (HBS) is the graduate business school of Harvard University in Boston, Massachusetts, United States.  The school offers a large full-time MBA program, doctoral programs, HBX and many executive education programs.  It owns "Harvard Business Publishing", which publishes business books, leadership articles, online management tools for corporate learning, case studies and the monthly "Harvard Business Review".

Castelar: Castelar is a city in Morón Partido (county), Buenos Aires Province, Argentina, some 30 km west of the nation's capital, the autonomous city of Buenos Aires.  It forms part of the Greater Buenos Aires metropolitan area.

Live Nation UK: Live Nation UK is the United Kingdom subsidiary of Live Nation, formerly the entertainment division of Clear Channel, a major US media conglomerate but now a separate and independent corporation worldwide.  As Clear Channel UK, Live Nation UK acquired the Mean Fiddler organisation and owns 51% of Academy Music Group, giving it a stake in most major music festivals and medium-sized London music venues.  It has since merged with ticket sales and distribution company, Ticketmaster to become Live Nation Entertainment.

Supporting paragraphs: Business Nation CNBC
Answer: Comcast