The first draft of the Programmes Ontology is now online: http://www.bbc.co.uk/ontologies/programmes
It's taken from a d2r mapping of the bbc.co.uk/programmes database which in turn is based on PIPs (which in turn also powers iplayer) For now it's just the ontology but we're planning to make the rdf data linked and available soon together with a sparql endpoint (depending on legalities). We'll be at the semantic barcamp (http://barcamp.org/SemanticCampLondon) if you have questions / wanna see some semantic "mashups" It's very early stages and only represents a weeks work so there are caveats: - we don't know how applicable it is to other broadcasters - it's taken from a branch of /programmes from last august/september so doesn't include the ondemand data (iplayer stuff). We'll correct that when we find the time - it's only really been seen by a dozen people so hasn't been commented on - please do All the hard/clever work was done by Yves Raimond and i have to say thank you to Sophie Walpole who found the money to do this work when many people would have said "eh?"
