If Directv is looking ahead to streaming video over the internet, they're talking about a long-term transition. Urban and suburban households have pretty good penetration of broadband internet service sufficient to stream video. Rural areas are looking at how to upgrade and many areas will get better service in a few years. We're in a rural area where DSL and Cable Internet are not available. The only choice (apart from a Verizon Cell data plan) is a wireless radio transmitter service. Download speeds are 5, 7 and 10 Mb/sec, and upload speeds are 250 Kb/sec. Within the next 24 months the service should get upgraded significantly.
Of course, from an RV'ing standpoint, none of this will matter. We'll either be dependent on data rich cell plans, or on campgrounds that install better WiFi, or we'll go with a satellite provider who stays in the satellite business.
As for Directv's migration to streaming, they'll get the service going and will figure out from the financial projections how fast to make the transition, or whether to make it at all.