Pay per view would add exactly the kind of incentives that would be disastrous. It's important that public broadcasters are (comparatively) free from commercial and political pressures, that's the only way to execute the mission they have been created for.
It should all be pay per view, via smartcards, or similar.
And then more and more people would think twice if it's really worth it, to them.
While the producers can GTFO, and do something meaningful with their UBI, or whatever :-)
Case in point, I recently watched a playlist on YT about some topic, while doing stuff concurrently.
About two dozen documentaries, all in all.
It almost doesn't matter who is producing them,
they all resample and mix the same stuff,
over and over again, in variations of the same theme.
Even carrying over the same mistranslations and mispronounciations,
thereby communicating wrongness.
But should be correct, because it was on TV, they should know what they do,
how dare you to question them!?
Monkey see, Monkey do! Boo!
There rarely is anything original.
This went on for maybe 3 to 4 hours, then I canceled it and put some music on.
Much better.
And don't even get me started about the so called 'independence' of those arrogant mouthpieces and sockpuppets.