Here is an article that claims "6 Jewish Companies Own 96% of the World's Media"
First it is intellectually lazy and plain inaccurate to overgeneralize but this question is general and about a broad-based phenomenon related to an entire group so I will proceed and try to avoid overgeneralization as much as possible.
The preponderance of Jews in positions of power in media in the US is certainly extraordinary, this is clear. America is an individualistic, capitalistic, competitive nation that emphasizes equality of political rights. The Jewish people have tended to excel, in my opinion, because they have tended to embrace individualism, capitalism and competition fully and because they have managed to be comparatively quite successful in these pursuits because of their ability to effectively utilize and assert their political rights and economic rights. The reasons for this would require a long separate response but include social and familial solidarity, cultural values and methods related to education and child-rearing, self-confidence, practicality, internal locus of control, ambition, desire for wealth and a Jewish history that pressured Jews to fight for survival long before the USA even existed. If you think about Jewish survival as a persecuted minority in so many places and times throughout history, we can conclude, Jews found a way to survive (and sometimes prosper) even without their political rights. In America, when given and sometimes fighting for and winning, their full political rights they have, perhaps obviously, been more successful (this may be an understatement). In America the rules of the game are: play fair, play hard and try to win. To the extent that Jews in America have not "played fair" they are certainly deserving of legal consequences and criticism (like every other American who violates laws), but to the extent that Jews have just been successful, even dominant, may be like pointing out that the Chinese dominate Olympic gymnastics. Yes, they dominate but that is because they are better at playing the game. So you will not hear me, as an American, complaining that the Chinese dominate gymnastics, their gymnasts dominate primarily because they work harder (other factors too), and I salute them for this, as long as they play fair (by the rules). If, as was accused in Beijing Olympics and before, they cheat (lying about age and saying a 12 year old is 16), then the problem should be addressed (many underage Chinese gymnasts have been stripped of medals because of lying about age).
For more, read this book, Jewish Phenomenon: 7 Keys to the Enduring Wealth of a People. The Korean people (I refer to South Koreans) are another example. They were also without political rights for much of history and threatened by neighbors and once given access to the world economy and political rights (gradually) they have been fiercely competitive and have also excelled.
To reiterate, violations of laws and regulations that govern the system (by Jews or anyone else) should and must be investigated and prosecuted to the full extent of the law, just like with the Chinese gymnasts breaking the rules of the game. The rules of the game, of course, are not perfect or sacrosanct, they are open to amendment. However, just like with changing Olympic rules, change is not easy and to have a realistic hope of success you must go through Olympic channels (or governmental channels on other side of analogy) to attempt to make changes to the rules. If you believe that most or all professional, business and otherwise economic success of Jews in America is not a result of playing the game well but a result of lying, cheating and stealing, i.e. breaking the rules of the game, then if you care to address the problem, energies can be directed at rule enforcement. Or if you feel the whole game of capitalism is unfair or wrong, then you can try to change the whole game to a new one, this is like trying to cancel the Olympics altogether, it may be possible but there are many considerable obstacles and powers blocking this path.
So in my view the subtext of the question is more interesting, and it seems that the full question is Why do Jews control the media? This is UNFAIR.
This is quite a different matter. If the rules of capitalism and individualism are accepted then FAIRNESS, in terms of all participants being economically equal, is not the goal. Just like having every country win an equal share of gold medals is not the goal of the Olympics. So if you accept the rules and want to play the game of capitalism, then it is a misunderstanding to complain that not everyone gets to win. That is the point of capitalism and sport, as referees say at the beginning of a football match: "play fair and may the best man (or team) win," and for there to be winners there must be losers. So if you are unsatisfied with the current state of affairs or, for any reason, your goal is to thwart this Jewish domination, within the capitalist game, then, I repeat, you can A) pursue enforcement of rules Jews have violated or B) Try to change the rules or add new rules of the game to make it more fair or C) Get to work yourself, and try to outsucceed the Jews and dominate yourself but D) Complaining that the Jews are winning, instead of doing work yourself, will only cause you to fall further behind in the capitalist game.
If you or your country do not accept capitalism then you reject the capitalist game. This is, of course, your right. However, by choosing to not play the game you must realize there are consequences for making this decision. The Global Economy is, to a large extent, the capitalist game. And if you refuse to play the game then you can't expect to win the game and you can expect that others will continue playing without you. So if you boycott the Olympics it doesn't make sense to complain that you didn't win any medals. Again, insofar as there are violations of the capitalist game (at the global or any level), these are problems with the game that must be addressed (like underage gymnasts, steroids, bribing judges, biased judges, etc. in the Olympics).
PART 2-Where is the Power?
Some info on men of power in American media:
Rupert Murdoch. Very powerful man in media. He is listed by Forbes magazine as the 13th most powerful man in the world.
FOXNEWS-CEO of News Corp. Rupert Murdoch is an Australian Christian (his mom is Jewish and some claim, according to Jewish doctrine he can claim Jewdom) and he controls the Fox Broadcasting Company. He is generally accepted to not be Jewish, but Peter Chermin, who head Fox's film studio and oversees TV production is a Jew. Murdoch also owns the Wall Street Journal, one of the most widely read newspapers in USA. He has also invested billions of dollars in satellite television, the film industry and internet media. Murdoch and his media are major backers of conservative causes (free market ideology; unified positions on matters of public policy; global editorial meetings; and opposition to liberal media bias), though he voiced support for liberal Barack Obama.
Another very powerful man is Ted Turner.
Turner controls CNN, WTBS, and the Turner Broadcasting system. He gave a $1 billion gift to the UN and is chairman of the UN Foundation. He has also been a major supporter of environmental causes. Turner was anti-religious for much of his life but in 2008 joined the Evangelical Lutheran Church (Christian). In 2006 Turner in a Reuters Newsmaker conference, of Iran's nuclear position: "They're a sovereign state. We have 28,000. Why can't they have 10? We don't say anything about Israel — they've got 100 of them approximately — or India or Pakistan or Russia." He advocated banning men from public office: "Men should be barred from public office for 100 years in every part of the world... The men have had millions of years where we've been running things. We've screwed it up hopelessly. Let's give it to the women." Turner is a very powerful non-Jew or "Gentile."
CEO of Time Warner (which owns CNN and Turner) CEO Gerlad Levin is a Jew.
Wolf Blitzer (CNN) and Keith Olberman (MSNBC) are both Jewish. Jon Stewart of Comedy Centrals "The Daily Show" is Jewish. Talk show host Barbara Walters is Jewish. Oprah Winfrey is a self-described Christian has been called an icon of "church-free spirituality" and has scolded Christians for their hostile, judgmental attitude towards homosexuality.
Disney is a massive media conglomerate, CEO is Michael Eisner (Jew).
The Federal Communications Commission (FCC) regulates media in the USA and is very powerful and is heavily influenced by corporate interests.
ESPN is headed by Steven Bornstein (Jew)
Viacom and Bertelsmann are other major media conglomerates, CEO is Sumner Redstone which doesn't sound Jewish but was born "Murray Rothstein" and is Jewish . TCI, Hearst, New York Times (Jewish owned), Gannett, Comcast, CBS, NBC, ABC are also big and powerful.
The largest media conglomerate today is AOL-Time Warner, created when AOL bought Time Warner for $160 billion in 2000. The merger brought together Steve Case, a Gentile (non-Jew), as chairman of AOL-TW, and Time Warner chairman Gerald Levin, a Jew, as the CEO)
Walter Isaacson (Jewish), formerly the editorial director of Time, Inc., is the CEO of Turner's CNN News Group.
Walt Disney Company. chairman and CEO, Michael Eisner (Jewish), includes several television production companies [Walt Disney Television, Touchstone Television, Buena Vista Television] and cable networks with more than 100 million subscribers altogether.
Sony Corporation's US subsidiary is headed by Michael Schulhoff (Jew).
Note: There are too many companies to list. There is no doubt that Jews have substantial ownership in US media. Here is a long list of the Jews in American Media. This does not however mean that Jews "control" the media. There is a lot of media in the USA that is not owned or controlled by Jews.
The smaller Dreamworks KSG is controlled by David Geffen, Jeffrey Katzenberg and Steven Spielberg (all 3 Jews).
6 Jewish Conpanies own 96% of World Media
FCC adopts media ownership rules
Proposal passed by party-line vote allows networks to reach 45% of national audience.
Rupert Murdoch's Jewish history?
A Nice chart of media ownership
Newspapers and publishing
Noam Chomsky: "Media Control"
Sr. Rush Feingold Speaks out Against Media Consolidation
Watch Movie OUTFOXED: Rupert Murdoch's War on Journalism
Corporate-Government Influence on Media