Dish spun EchoStar out into a standalone company in 2008.
Regulators blocked a deal years ago.
The media landscape has changed, but the regulatory climate is particularly tough these days.
Associated Press
EchoStar CEO Hamid Akhavan will trigger the combined comapny.
Dish Networks chief executive Erik Carlson will exit when the deal closes.
Ergen will be executive chairman.
John Swieringa, COO of Dish Wireless, will be COO.
An 11-member board will include seven Dish directors, three EchoStar independent directors and Akhavan.
