Which would be horrendous. Commercialism does bad things to television and to creativity. You only have to look at America and many channels there; like Comedy Central, where advertisers started to put pressure on programme makers to cut out jokes about their products which we being advertised during and afterwards. Hell, just look at the effect it has on the quality of programming here, particularly with the likes of ITV.
Imagine if Panorama wanted to do an expose on the practices of a clothing manufacturer, but that manufacturer had already signed a lucrative advertising deal with the BBC. Who do you think is going to win that battle?
There's a reason why the likes of Murdoch and Dacre want to turn the BBC into a commercial entity; it's so they can gain financially from it whilst utilising it as a mouthpiece for their own political and corporate agenda. So they constantly woman and moan and spout nonsense about it so that we believe their crap and start doing the same. Already these papers and the Tories had started the dismantling process by forcing the BBC to disclose the salaries of staff above a relatively modest threshold; with that kind of pressure and scrutiny the talent will naturally move over to commercial channels where they can be paid more and won't have their payslips viewable to the public. The BBC is having to produce more and more programmes, or better and better quality, with fewer freedoms and less talent.
The BBC ain't perfect but it does try to give something for everyone and it does at least try to remain impartial (yes, certain individuals working there are partisan and this inevitably seeps through, but it's still nowhere near as bad as the commercial channels). People like to woman and moan about it but along with free health and free education it is probably the best thing we have in this country. I reckon everyone has got their money's worth out of it if they bother to think about it; Christ, I'd happily pay the license fee now and forever more in gratitude for the fact that Blackadder ever existed! And then there's The Mighty Boosh, The Office, Alan Partridge, QI, University Challenge, Would I lie to You, HIGNFY....so many things have made it worthwhile.