Initially operating both systems as is would be the most logical approach. Next would come programming consolidation, finally followed by equipment transitions. That transition could be spread over several years.My understanding of a DTV and Dish merger would be that either the DTV customers would all have to get new equipment, or the Dish people would all need new equipment, as neither one is compatable with the other. And no one would be willing to re-equip millions of customers all at once.