I guess if you can't watch HBO or Showtime for free on the old Big Dish any more, you can still use it for something. Although I'm not sure I'd want to use it for this. 

"With a C-Band dish, you can replace a few key signal reception components into a Wi-Fi antenna that can expand coverage from the typical few meters to many miles. It should be noted that the coverage area must be clear of obstructions like hills, buildings, or other structures. Yet, for rural residents, building a wide ranging wireless coverage area can be immensely beneficial."

Remember Those Giant Satellite Dishes That Were Everywhere? Here's What They Were For