The BBC (British Broadcasting Corporation) is set to launch its on-demand download service later this year after receiving the initial approval form the BBC Trust. Assuming that the rest of the proposal goes to plan, viewers will be able to watch or download popular TV programmes for up to a week after they are broadcast. The application it will use is called iPlayer, which will let users chose what to download and will allow users to watch the programmes for up to 30 days after they are downloaded, or seven after they are first watched. It's not clear who this service will be available to, presumably it would be aimed at license payers but that would be difficult to enforce. Examples of programmes available for download include Planet Earth and Doctor Who.