TVRadioSchema extension to schema.org

Dear all,

The announcement of schema.org 1.0 getting close, there has been a surge of activity around the TVRadio schema around the Semtech conference in SFO 2 weeks ago.

I have done further work with Yves Raymond from BBC, and Dan, and this has led us to what can be found here: http://www.w3.org/wiki/WebSchemas/TVRadioSchema

This can be summarised as follows:

-          The further specialisation of some properties to differentiate between TV and Radio plus some proposals for clarification of properties in this context

-          The addition of the notion of Clip in general with specialisation in Radio and TV

-          The addition of the PublicationEvent, inheriting from the existing Event class. Two sorts of publication events are covered: broadcast events (to allow EPG events to be describe in a way understandable to search engines to fin content and services providing such content within a given area) and on demand events (NOTE: from an EBU and BBC perspective, such events are freely accessible. I may make sense to add the property 'free' as a Boolean to Event in order to differentiate free event from access controlled events and go form more complete on demand descriptions associated to transactional services.)

-          We have provide a few examples using microdata and RDFa Lite

Comments are welcome.

Best regards,

Jean-Pierre Evain
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