Question: WCCO-TV is owned by a subsidiary of a company that began tradin go the NYSE in what year?

Context paragraphs:
United American Insurance Company: United American Insurance Company (UA), based in McKinney, Texas, provides supplemental life, health, and accident coverage.  UA was founded in 1947.  Today, UA operates in 49 states, the District of Columbia, and has approximately 1,000 people working in the Home Office.  UA New York, our individual insurance business, is conducted through United American's subsidiary, First United American Life Insurance Company.  An independent Agent system is employed to deliver life and Medicare supplement coverages to customers living in this state.  The company is a wholly owned subsidiary of Torchmark Corporation (NYSE: TMK), based in McKinney, Texas.

Anthem Inc.: Anthem Inc. is an American health insurance company founded in the 1940s, prior to 2014 known as WellPoint, Inc.  It is the largest for-profit managed health care company in the Blue Cross and Blue Shield Association.  It was formed when Anthem Insurance Company acquired WellPoint Health Networks, Inc., with the combined company adopting the name WellPoint, Inc.; trading on the NYSE for the combined company began under the WLP symbol on December 1, 2004.  On December 3, 2014, WellPoint changed its corporate name to Anthem Inc., and its NYSE ticker changed from WLP to ANTM.

CBS Corporation: CBS Corporation is an American mass media corporation focused on commercial broadcasting, publishing, and television production, with most of its operations in the United States.  The president, chief executive and executive chairman of the company is Leslie Moonves.  Sumner Redstone, owner of National Amusements, controls CBS by way of his majority ownership of the company's Class A voting stock; he also serves as chairman emeritus.  The company began trading on the NYSE on January 3, 2006.  Until then, the corporation was known as Viacom, and is the legal successor to said company.  A new company, keeping the Viacom name, was spun off from CBS.  CBS, not Viacom, retains control of over-the-air television (CBS, CW) and radio broadcasting, TV production and distribution, publishing, pay-cable, basic cable (Pop), and recording formerly owned by the larger company.  CBS has its headquarters in the CBS Building (colloquially called "Black Rock"), Midtown, Manhattan, New York City, United States.

SPDR S&amp;P 500 Trust ETF: The SPDR S&P 500 trust is an exchange-traded fund which trades on the NYSE Arca under the symbol (NYSE Arca: [ SPY] ).  SPDR is an acronym for the Standard & Poor's Depositary Receipts, the former name of the ETF.  It is designed to track the S&P 500 stock market index.  This fund is the largest ETF in the world.  SPDR is a trademark of Standard and Poor's Financial Services LLC, a subsidiary of S&P Global.  The ETF's CUSIP is 78462F103.  The fund and has a Net Expense Ratio of 0.0945%.  The value of one share of the ETF is worth approximately 1/10 of the cash S&P 500's current level.  On April 9, 2013 the average daily volume was 117 million shares, the highest volume in any ETF.  The sponsor is PDR Services LLC, a wholly owned subsidiary of American Stock Exchange LLC.  Dividends are distributed quarterly, and are based on the accumulated stock dividends held in trust, less any expenses of the trust.

Smedvig: Smedvig ASA, ("Smedvig"), (OSE: SME, NYSE: SMVA) was a Norwegian offshore oil rig company headquartered in Stavanger until it was acquired (January 2006) by rig newcomer SeaDrill.  At time of the merger Smedvig operated two semi submersibles, one drillship and one jack up rig in the Norwegian and British sector of the North Sea.  A fleet of seven tender rigs were operated in South East Asia from the Singaporean subsidiary Smedvig Asia.  As part of the merger, Smedvig's staff was transferred to Seadrill with Smedvig senior personnel assuming key positions in Seadrill (CEO, CFO etc.).  Smedvig was delisted from the OSE and NYSE.  Tanker mogul John Fredriksen is the major stake holder in SeaDrill.  Seadrill is listed on the Oslo Stock Exchange.

Globe Life and Accident Insurance Company: Globe Life And Accident Insurance Company, based in Oklahoma City, Oklahoma, provides life and health insurance coverage nationwide.  Globe Life is the largest issuer of ordinary individual life insurance policies in the U.S. since 2003 (as reported by credit rating agency AM Best based on number of policies).  Globe Life And Accident Insurance Company (hereafter referred to as "Globe," "Globe Life," or "The Company") was founded in 1951.  The Company’s executive offices are housed in Oklahoma City and McKinney, TX.  Globe Life has more than 3.9 million policyholders (as of August 2013).  The Company has over $66 billion of insurance in force (as of August 2013).  The Company is a wholly owned subsidiary of Torchmark Corporation (NYSE: TMK), based in McKinney, Texas.

MortgageIT: MortgageIT is a residential mortgage banking company that was founded in 1988 and is headquartered in New York City.  By 2004, the company had become one of the top mortgage lenders in the nation.  Also, in 2004, MortgageIT became a wholly owned subsidiary of MortgageIT Holdings, a self-administered REIT trading on the NYSE.  As a full-service residential mortgage banking company, MortgageIT’s primary business operations are to originate, sell and broker residential mortgage loans in 50 states and the District of Columbia.  Also, MortgageIT is an approved U.S. Department of Housing and Urban Development (HUD) delegated mortgagee.  At the end of January 3, 2007 the company employed 2,100 and had 47 branches throughout the United States.  The settlement, title and related services for mortgage loans were provided by Home Closer LLC, a subsidiary of MortgageIT.

TransMontaigne: TransMontaigne Inc., formerly NYSE:TMG, is a oil pipeline and terminal company based in Denver, Colorado.  In 2006, it was the 269th largest company in the United States and as of 2012 it was the 17th largest privately owned company.  On September 1, 2006, it became a wholly owned subsidiary of Morgan Stanley, and subsequently delisted from the New York Stock Exchange.  In 2014, Morgan Stanley sold TransMontaigne to NGL Energy.

Jones Pharma: Jones Pharma is a specialty pharmaceuticals manufacturer and marketer based in St. Louis, Missouri.  The company was founded on March 16, 1981 by Dennis M. Jones and Judith Pearce Jones under the name Jones Medical Industries.  The company completed its initial public offering in 1986, trading under the ticker symbol JMED on the NASDAQ.  The primary therapeutic compounds marketed by the company include Thrombin-JMI and Levoxyl On May 30, 2000 the company became a wholly owned subsidiary of King Pharmaceuticals (NYSE:KG), based in Bristol, Tennessee.  The market value of the company on its closing trade was $3.6 billion.  Parent company King Pharmaceuticals was acquired by Pfizer in 2010.

WCCO-TV: WCCO-TV, virtual channel 4 (UHF digital channel 32), is a CBS owned-and-operated television station, licensed to Minneapolis, Minnesota, United States and serving the Twin Cities television market.  The station is owned by the CBS Television Stations subsidiary of CBS Corporation.  WCCO-TV's studios are located on South 11th Street in downtown Minneapolis, and its transmitter is located at the Telefarm complex in Shoreview, Minnesota.

Supporting paragraphs: WCCO-TV CBS Corporation
Answer: 2006