Success was never going to be defined by profitability for GB News and TalkTV, at least in the mid-term. So far this has been borne out, with revenues small and viewing confined to niche audiences.

The two recently launched channels have become part of the broadcast news environment while diverging from its traditions. Their emphasis on opinion and commentary over news and analysis has influenced news agendas, political discourse and the TV news landscape more than their viewing figures suggest.

Now that the fairly elastic (and previously untested) boundaries for due impartiality set out in the Broadcasting Code are being stretched, it is only right that Ofcom look at them more closely. Although some change is to be expected, TV news' integrity as a highly trusted medium should be preserved.

Non-subscribers can download this report in full - alongside all our other coverage of the BBC during the Charter Review process - from the 'BBC Charter Review' page of our site.

The Charter Review of the BBC officially opened with the Culture, Media and Sport Committee’s inquiry into the Future of the BBC asking the question “What should the BBC be for and what should be the purpose of public service broadcasting?” The only obvious answer is that the BBC and public service broadcasting should be for the people of Britain, and the BBC rates highly on different measures of public and audience engagement. The BBC plays an irreplaceable role in the supply of PSB programming that UK audiences appreciate, most importantly news, where the BBC accounts for 70% of TV news time and for 22% of online news time in 2013.