The letters BBC stand for the British Broadcasting Corporation. It's the public service broadcaster of the United Kingdom and probably the best known non-profit radio and television organization in the world. BBC gets money from a licence fee and program sales.

BBC was formed under a Royal Charter in 1927. The original aim of the organization was to "educate and enlighten the citizens", and it remains the same nowadays. BBC programs and TV-shows are known and loved worldwide (Doctor Who, Top Gear, QI, etc.).

More Info: en.wikipedia.org