UGC - not the cinema chain

I realise that this entry is contradictory to the precepts of blogging, but bear with me and consider it to be an example of postmodern irony. Or something.
These days UGC is the buzz-acronym for our media, particularly television, and especially on the BBC.
Born of the internet, User Generated Content allows a return path along which an audience can respond to the information provided and contribute to it. On the web it would be through adding comments to this blog, for example, while on TV or radio it's usually via SMS and email, though MMS and video clips are bound to follow shortly.
I have some issues with this.
I don't watch the news to find out what the populace thinks about NHS postcode lotteries: if I wanted to know that I'd go down the pub. I don't care for uninformed opinions on the Middle East from people who've never been there. I'm still more sceptical about how much value there is in the amount of social commentary that you can fit into a text message. Isn't this all just a way of journalists not doing their jobs?
How much investigative research do you need to do if everyone just sends you in text messages some lackey can trawl through? How many five second links in live news programmes can editors fill with a quirky SMS from a member of their audience? And as content is sourced and aggregated from increasingly diverse sources, how long until news broadcasts are just a variant of youtube?
I was wondering if there were fundamental differences between the web as a news medium and television, such as a sense of community. But it's all content for the self-content. There's no reason why TV shouldn't encourage greater interactivity with its audience.
Except that I want substance not opinion. I want curiosity not prejudice. Journalism should be about discovering things that are hidden from the public, not telling the public what it knows already and then what we think about what we know.
Without wishing to sound like a Tonbridge colonel writing into the Telegraph or a self-righteous academic, UGC in television news sounds a death knell for informed journalism and, by extension, a significant shift in the intellectual episteme for the 21st century. In western Europe, we can point to various modes of thought: contemplative theoretical epistemeology through Aristotle, acceptance of scholastic hegemony through Roman Catholic doctrine, a protestant autonomy of thought through empiricism... and now I guess in an extension of hermeneutics it's all about how we each read what we're told and the opinions we form. It's a move away from trying to discover objective truths. UGC reflects a self-confidence about audiences today that we hold the answers to all questions already. But the media should be asking not what we know already, but what we don't know yet. And in a wider philosophy of progress and ambition, we should be asking ourselves the same questions too rather than blogging facile opinions that extend no one, least of all ourselves.