http://money.cnn.com/2005/12/29/news/fortune500/att_echostar/index.htm
A fairly detailed analysis
Rumors have made the rounds lately that AT&T (Research) (formerly known as SBC) may be interested in acquiring EchoStar (Research), the nation's second largest satellite TV firm. Shares of EchoStar have gained more than 11 percent since mid-November.
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A fairly detailed analysis