There was a thread on Mumsnet 're the amount of money spent on the new Eastenders set (I don't watch soaps, so idea if it is value for money).
The OP was concerned 're the amount spent, however another poster who had worked for the TV industry pointed out that the BBC would re-coup it's outlay and earn several millions on top from selling episodes to the foreign TV companies.
Big budget programmes are sold on to other countries
The licence fee is just a top up fee for the BBC.
If it not under government control, I don't see why the viewer should be held to ransom just because they have the 'capability'receive the BBC.
Many watch via Sky, Amazon Prime, Netflix, youtube, read news on -line etc.
Other channels and freeview that gets their revenue through adverts.
Not everyone listens BBC radio.
There are hundreds of radio channels to choose from.
My grandchildren have virtually no interest in TV, they watch films, documentaries via their pads..
They have an avid interest in dinosaurs, sharks and scary animals which the watch on their tablets.
Music is also via tablet and downloads.
I would be very surprised if as adults the will even own a TV.