BBC such as Radio Luxembourg, had broadcast programmes in English to Britain since the 1930s and the Isle of Man-based Manx Radio began in 1964. Today, despite the advent of commercial radio, BBC radio stations remain among the most listened to in the country, with Radio 2 having the largest audience share (up to 16.8% in 2011–12) and Radios 1 and 4 ranked second and third in terms of weekly reach. BBC programming is also available to other services and in other countries. Since 1943, the BBC has provided radio programming to the British Forces Broadcasting Service, which broadcasts in countries
BBC Canada This means that much of the BBC's output (and, for that matter, BBC America's original programming) airs on other Canadian channels which have either co-produced the programs or simply bid more for the Canadian broadcast rights. Conversely, many of the British series that do air on the channel are not sourced from the BBC, with some having originally been produced by or aired on other British channels, such as the privately owned ITV or the independent public-service broadcaster Channel 4. Despite its British focus, BBC Canada is licensed as a Canadian channel and is not exempt from the CRTC's broadcasting