CBS corporation

How many What different types of media product do they produce?

CBS Corporation is an American mass media corporation focused on commercial broadcasting, publishing, billboards and television production, with most of its operations in the United States

television channels are owned by the same corporation?

 As of February 2013, CBS Corporation owns twenty-nine stations, broken down as follows: sixteen are the key stations of the CBS Television Network; eight are aligned with the CW Television Network, which is co-owned by CBS with Time Warner; three independent stations; two stations affiliated with My Network TV

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What type of programming appears on each station?

CBS Television Distribution (CTD) is an American television distribution company, formed from the merger of CBS Corporation's two domestic television distribution arms CBS Paramount Domestic Television and King World Productions, including its home entertainment arm CBS Home Entertainment. The division, the main distribution arm of CBS Paramount Network Television (now CBS Television Studios) and of the CBS television network, was formed on September 26, 2006 by CBS Corporation and was headed by Roger King, the CEO of King World until his death in 2007.

Why do so few corporations own so much, etc.?
Because CBS corporation is An American Mass media corporation , including many media corporations . CBS corporation created a monopolization. They want to get more money.That's reason why they own so much . Customer must accept this and accept CBS corporation. 

What has putting together a list of media conglomerate holdings taught you?
CBS, not Viacom, retains control of over-the-air television (CBS, CW) and radio broadcasting, TV production and distribution, publishing, pay-cable, basic cable (TVGN), recording, and outdoor advertising assets formerly owned by the larger company. CBS has its headquarters in CBS Building, Midtown, Manhattan, New York City, New York, United States.