The chief political commentator at the Daily Telegraph, Peter Oborne, has resigned from the paper, saying its lack of coverage of HSBC and allegations of tax avoidance amounts to a form of "fraud on readers" - a charge the paper strongly denies. Mr Oborne said there had been serious lapses of editorial judgement. It's raised questions about the extent to which advertisers influence editorial decision making, as newspapers come under increasing financial pressures. Steve Hewlett talks to Chris Blackhurst, former city editor of the Evening Standard and former editor of The Independent, about whether the balance of power is shifting. British TV drama is becoming big business overseas. From the popularity of Downton Abbey, Sherlock, Parade's End and Doctor Who, to more recent exports like Broadchurch and Fortitude, a global audience is now enjoying home-grown productions. Steve Hewlett discusses what is driving the growing interest with Ben Donald, Executive Producer of International Drama at BBC Worldwide, Jane Millichip, MD of Sky Vision, and Mammoth Screen founder and producer Michele Buck. A controversial documentary on immigration that was filmed in Southampton has been reduced from six programmes to one. Channel 4 has announced it will show "Immigration Street" as a one-hour documentary next Tuesday. The station originally commissioned six episodes of the Benefits Street spin-off, made by Love Productions. Steve Hewlett asks executive producer Kieran Smith what has led to the decision, and he speaks to Satvir Kaur, Southampton councils cabinet member for communities about the impact the documentary has had on residents. Producer: Katy Takatsuki.