Broadcasting Minister Jonathan Coleman is considering sacking the Radio New Zealand board if the public broadcaster cannot shift to a new business model in an effort to save money.

Documents released under the Official Information Act to One News show that Dr Coleman has told Radio NZ not to expect any new funding for the foreseeable future.

Radio NZ costs about $38 million a year to run, but the Government is demanding a shake-up to counter rising costs.

Do we still need taxpayer funded public broadcasting?