I'm not altogether convinced of the BBC's total impartiality. I know that to make good programmes you do need this and I do know that they often strive to depict things fairly and I'm sure they will have a policy covering this that should be followed. However some of their employees somewhat often go just a tad off piste.
But I do agree that the BBC does need to be protected. They produce some fantastic TV (and radio) that the other channels can only dream of. I watched a quasi-documentary yesterday on ITV that was fronted by Ellie Harrison and was about the dinosaurs that roamed the British Isles. It swung from interesting documentary to Jurassic Park type sketches where Ms. Harrison suddenly stopped spouting information or interviewing boffins, looked concernedly into the distance where a CGI dinosaur was strolling along the banks of the Thames or careering through the Natural History Museum and everyone had to leg it. I had to turn off eventually. Even the delightful Ellie wasn't at her best, although much loved by some on here, she wasn't quite ready for her close-ups and her roots were definitely showing. The BBC wouldn't produce such tosh.
Anyway, I'm rabbiting on and I digress from the point of this thread, so I'll apologise and stop now.