Naomasa- Yes, Robert Preston gets on my wick, too. Mightily.
I'd say that the BBC's bias is overwhelmingly London-centric, middle class (which can mean the pseudo left wing: that group who get furious about ... rights, women's rights, racism and who adhere to Political Correctness, but who couldn't give a monkey's about the working class and underclass), and are pretty much a mouthpiece for the Government, especially since the Hutton Report. That little episode reeled the BBC in for good.
Government has a massive lever over the BBC: the issue of TV Licence fees. Most people would love to see them go, but they're the BBC's lifeblood. Overly critical reporting by the BBC would surely see Government pull the plug, and the public would applaud the end of the Licence Fee.
The BBC operates a system of "censorship by omission", where they don't deny something, or offer an opinion, they merely don't report it. They also repeatedly go on about certain "truths" which are very dodgy: "We're all living longer" (whilst also reporting that this is the first generation to outlive its children because of obesity and alcohol abuse in youngsters). The integrity of Parliament, and the "mission" out in Afghanistan, which is really a news blackout apart from carefully managed "implanted" reportage. The BBC's Pro Israel bias is glaringly obvious and well known.
Did anyone see Paxman try to have a go at George Galloway the other day? He'd never have done that to a Tory or Labour politician.