
Read this: FAQ: PSB obligations |Media | The Guardian

Summary: In return the channels must provide a quota of hours of PSB programming, such as news and current affairs. ITV says the costs will outweigh the benefits by the end of this year. Media regulator Ofcom, which is conducting a second review of PSB, admits that as digital switchover nears and analogue benefits end, the costs will outweigh the benefits. - guardian.co.uk
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