The answer for DISH NETWORK is simple. Dump unnecessary channels, that's about 1/2 currently offered freeing up bandwidth. (MORE ISN'T BETTER and NEVER was)..... If you want the bleeding to stop make your service unique and (AWESOME) where customers don't want to leave. You have the DVR with the H3 but need better PQ, something that stands above the rest.
HD lite just doesn't cut it with modern televisions and when people see streaming services like PSVUE have better PQ for much less they leave.
Its time to start thinking out of the box or failure is sure to come.
Can't comment on internet delivered services PQ as I'm on a WISP, but don't disagree with your comments on Dish. They especially need to fix or replace whatever hardware they're using that results the frame rate judder I've been seeing for well over a year on channels like AMC, SyFy, USA and probably others. Original scripted shows on those channels (like the Walking Dead, The Terror, Expanse, Krypton etc.) are unwatchable for me on Dish.