TM Satellite TV dish?

I'm curious to know more about the Satellite TV dish option that's available on the TM. (I wasn't aware it was an option when I purchased last summer.) We currently lug around a dish on a tripod, but I hear that you can get one that already fits on the TM?

Anyone got photos or specs about the dish? Any idea on the cost if ordered from the factory? Would it be easy to install in place of the current TV antenna?

THANKS!

- Mark