The crucial thing is that no-one (really, really *absolutely no-one*) gets to see or hear or read any BBC output unless they have paid.
Regardless of the funding methodology, I want all the overseas freeloaders cut off and (unless we do go for a universal levy from taxation) all non-payers inside the UK cut off too. Encrypt everything.
That means online, over the air and by ***ing withcraft too, if they use that to steal programmes they don't pay for.