The BBC are fully aware that it's more than their life, or licence fee, is worth to show overt bias in domestic party politics. Only in foreign politics can they distort their coverage, usually in direct proportion to the subject's distance from the UK, and in indirect proportion to viewers' knowledge of the issues.
The true bias of the Beeb appears in their treatment of non-political (in the strict sense) subjects.
Every historical program featuring women will include a standard homily on the unenlightened attitudes of the past. If, as is usually the case, the life of the woman in question provides no obvious evidence of 'oppression', she will invariably be described as an 'exception to the rule.' So frequent are these exceptional instances in BBC historical documentaries that it might reasonably have occurred to programme makers that calling them 'exceptional' is a misnomer. But politically correct ideology is more important than evidence.
No chance must ever be missed to lament the historical crimes of white people against blacks. Any reference to the history of Australia must include a denunciation of the horrific mistreatment of its native people. The history of slavery is particularly beloved by the Beeb. Some reference to this injustice will be dragged by the scruff of the neck into the most unlikely subjects. However tangled the facts of any particular instance, the correct moral conclusion must always be drawn.
I suspect people who make programmes for the BBC are left in no doubt about the organisation's view of such matters.
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