£150 fee to BBC by default each year from every tv licence subscriber, by law in uk.
If Subscriber details breakdown (by phone, or website) on form, then fee split by percentages to authorised suppliers:
So i would do 40% Sky, 20% ITV, 10% C4, 10% Dave - bbc gets rest.
Subscribers can get rebate from suppliers (Sky etc) by quoting thier licence fee number and having thier subscription refunded to ammount they provided.
This encourages people to have licence fee, gives then say in its allocation, and will drive down costs (BBC Newreaders getting more than Prime Minister ?)