Originally Posted by RichardCoulter

The BBC channels would still be available, Free To Air, from the Astra satellite. The channels would simply be removed from the Sky EPG. Some or all may still be available via "add channels". The channels available, however, would no longer be recordable.

No extra subscription to Sky would be required and the TV Licence would still be payable.

Of course, all this is purely academic as Sky would never allow it to get to the stage where they left the platform. That's why i'm surprised this hasn't been tried before.

The very existence of the BBC channels on Sky is enough remuneration in itself. In some countries, PSB channels charge the platform owners for inclusion on their platform!