MPEG4 isn't reliant on the satellite, just the STB. They could just as easily send MPEG4 over the existing satellites once the boxes are ready. MPEG4 is just a more efficient way of encoding a digital signal. Once the boxes are ready to go out they can start broadcasting wherever they want. The new birds just make it easier on the customers. If they put a markets LIL onto the new bird using MPEG4 encoding the customers with the old boxes will still receive their locals like normal. When customers are converted to the new boxes they'll aim at the new birds. This is going to be a mammoth project for D*.
I assume D* will begin converting non-HD customers after all the HD people are swapped out. That would mean every time they convert a DMA that spot beam would be freed up for more content!
I assume D* will begin converting non-HD customers after all the HD people are swapped out. That would mean every time they convert a DMA that spot beam would be freed up for more content!