Looks like the courts of America believe that Dish Network infringed on copyrights held by TiVo in their own DVR systems. The appeals court upheld an earlier decision and this marks the end of the line for Dish (unless the Supreme Court decides to hear the case).
Dish network could be forced to stop selling DVRs and disable all of their existing DVRs, which might lead to a massive exodus of subscribers.
In addition, they owe TiVo something to the tune of $96 million in damages. After that, they could conceviebably pay licensing fees to TiVo to keep using and selling their DVRs.
We're interested to see what happens because Dish Network doesn't have many options.