I just went through this exercise. Dish sent me the boxes with prepaid shipping labels for the return trip. They didn't mention anything about sending back LNBs when I canceled, so I called them and said it would be difficult to retrieve them since they are on my roof. The CSR told me not to worry about them and to just send back the receivers, so that is what I did. According to the tracking information provided by UPS, they should arrive in Spartansburg, SC tomorrow. It was a nice 5 year run with DISH but I decided to go with Fios, which actually lowered my cost due to the bundling.