In terms of impartiality, I would have thought that the BBC would be expected to give voice to "reputable" individuals, whatever that may mean. So, if discussing (say) Cancer treatment, I would expect them to present individuals with a recognised qualification, not, Joe (or Josephine) Bloggs, who they have just invited in from the local Lidl.
The problems I see are:
- public trust in our "leaders" has been diminished, so, for example, Prof Whitty may not be held in high regard, not necessarily through any fault of his own.
- the old "setting an example" seems to have died the death, so, being told by a Minister to desist from smoking, or, eat healthy, or, being over weight, whilst they visibly do not do so, similarly, diminishes public trust
- in terms of "scientific" view points, the great minds of the day have, on occasion been proved wrong in the past, as knowledge develops (eg, Phostrogen, Miasma, Sun orbiting the earth, as opposed to the other way around).
- in terms of Economics, there are almost as many viewpoints as there are Economists
- in terms of Politics, how do you define "reputable"?
- impartiality was easier when News Readers simply read the news, in a neutral tone, rather than comment on it, adding in their own prejudices via voice inflections.
Personally, I do tend to regard the BBC as "balanced", mainly because, at various times I consider them to be "partial" either to the right, or, to the left, often, in the same bulletin.