[jfman]

In the "most" scenario I outlined above I envisage PSB to be relatively unchanged. As broadcasters they will evolve and have feet in both camps retaining linear channels over DTT/cable/Sky/streaming for a universal service.

While 100% FTTP is extremely unlikely once that figure is in the mid to high 90s we have opted for a "two tier" Freeview service based on what multiplexes can be received - I can see this being enough to support a significant shift.

I think demographic shift supports the direction of travel. For OBs point 3) I doubt broadcast transmitters will close down as soon as that to preserve 1) and broadcast something to the gaps in 2).