A lot. There is:
BBC 1, BBC 2, BBC 3, BBC 4, BBC News, BBC Parliament, CBBC, Cbeebies, BBC Iplayer, BBC England, BBC Scotland, BBC Wales, BBC Northern Ireland, and BBC America
There is BBC radio channels too:
Radio 1, 1Xtra, Radio 2, Radio 3, Radio 4, Radio 5 live,5 live sports extra, 6 music, radio 7, Asian Network