There's an article at
BBC Backstage on an interesting new prototype that the BBC is currently developing. (
Side-rant: Am I alone in finding the Backstage site utterly horrible to look at? What on earth is that header about? I also find it amusing that they describe Backstage as "the BBC's early adopter network", while other BBC sites have are moving on to a newer design, but anyway...
)
Using the text generated for the live subtitle feed of a channel - the BBC News Channel is being used as the testbed - the prototype scans the text for keywords, and matches them to articles on the BBC News site, displaying the results on screen.
In its current iteration, it looks like nothing more than a terrible nuisance of course, but it's easy to imagine how this could easily be developed into something much more interesting. Imagine, for example, while watching the News Channel on a Canvas-powered STB, being able to press an 'info' button on your remote, that brings up a layer of articles on the same subject as the report you just watched. A URL promoted during a programme- "visit bbc.co.uk/diysos to find out more top tips" - could be instantly selected while the programme itself is paused. The whole BBCi system could be turned into something much more powerful, and it could easily provide a more intuitive and engaging way to offer a wider range of BBC content to viewers.
I'm not sure if Google has a similar system for live content - I know that they're able to generate search terms from voice conversations though, so they've obviously got some capabilities in that area - so I'm uncertain how revolutionary this prototype is on a wider scale.
Either way, though, it's good to see the Beeb continuing to review new ways of providing content, and assuming this is indeed shared with Canvas, it could be a very good thing.
The flipside, of course, is that the commercial implementations of this technology could be far more irritating and intrusive than the BBC's - some hellish nightmare TV version of pop-up ads appearing all over our screens for years to come. God help us all.