BHR Said:
" since there is no empirical measure that any of us can use for the sake of comparison."
Not so BHR, not so at all in fact, many of us are old enough to be able to compare the BBC of to-day with the BBC of old and do so quite objectively - without being too eloquent, what we see to-day is a whole load of left leaning crap compared to a centre position of yesteryear, simple as that.