The BBC domestic television channels do not broadcast advertisements; they are instead funded by a television licence fee which TV viewers are required to pay annually. This includes viewers who watch real-time streams of the BBC's channels online or via their mobile phone. The BBC's international television channels are funded by advertisements and subscription.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How often is a broadcast licence fee paid by viewers of BBC domestic channels?
unanswerable