We have an old DV3 receiver for our Dish install here at work. I am trying to hook up a OTA antenna so we can get the March Madness games today but I can't get it to work. I hooked the coax to the antenna in on the back of the receiver, but I can't get the receiver to recognize it or find the locals. Anyone know enough about this dinosaur reciever to help? Or anyone know where I can get online help/manual for this receiver?