Looks like there has been a disagreement over an increase of fees demanded by Fox for its sports and entertainment channels.
From the Wall Street Journal:
Dish Drops Two Fox Channels
Satellite-TV provider Dish Network Corp. is no longer carrying 21st Century Fox’s Fox News Channel and Fox Business Network after the companies couldn’t come to terms on a new distribution contract.
[...]
Dish, which has 14 million subscribers, accused Fox of attempting to use the contract talks as leverage to increase fees for sports and entertainment channels covered by contracts separate from the Fox News and Fox Business agreements.
From The New York Times :
Fox Channels Blocked in Dish Network Dispute
Dish Networksubscribers woke up Friday to find that FX, National Geographic Channel and Fox’s regional sports networks had disappeared.
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Early Friday morning, Fox said, “The proposal we’ve offered Dish is fair and in line with the tremendous value we provide. We regret the inconvenience to our viewers, but Dish has asserted its subscribers do not value our channels and has made a decision to go forward without them.”
A few hours later, Dish said in its own statement that Fox was demanding an “unprecedented rate increase of more than 50 percent.”
Oddly enough, Dish decided to replace the programming with Glenn Beck's "The Blaze".
From addictinginfo:
Dish Network Drops Fox News, and ‘Fair and Balanced’ Crew Is Livid (SCREENSHOTS/VIDEO)
For now, Dish Network has been cleansed of one lying entertainment company masquerading as a news channel. Thanks to Fox News’ unreasonable demands for the new distribution contract between the two entities, Fox News and Fox Business Network were removed from Dish on Saturday night.
[...]
For now, Dish has replaced Fox News with The Blaze (which is not an improvement), owned by master misinformer Glenn Beck. This is the first time Fox News has been blacked out by any major television distributor, according to CNN.
Though the dispute was solely financial, and was brought about by the greed of the “news” network, the decision to (for now) move forward without this particular lie factory is a service to Dish Network subscribers.