"Of course the BBC has political bias built in", says former Guardian editor

Well, this is interesting from the last-but-one editor of the Guardian, Peter Preston (of all people):

Of course the BBC has political bias built in. Just read the rival manifestos, listen to the attendant chatter, and see how much less threatening a Labour government must seem along Langham Place [better known as Broadcasting House]: warm tributes to the “enrichment of cultural life”, easier licence-fee rises, more jobs saved, business as usual. 

Well, quite.