Microsoft separates audio and video podcast content, and for whatever reason video podcasts can't be shared.

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And don't miss our video podcast from the show floor every night at 8PM PT.

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To watch a 5-day-old episode of Diggnation, a free video podcast they could have just as easily viewed at home or on their iPods...

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Why Microsoft differentiates sharing between video and audio and podcast content is entirely beyond us.

ENGADGET: New Zune review (part 2): upgrade, hardware, software and Social

This seems aimed at the audio engineer by day, that dabbles with video and likes to podcast on the weekend.

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In fact every person who posts interesting or useful content online in a social network, a podcast, video or a blog is a media company.

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Ahead of the podcast - which No 10 had suggested would be published on Monday - Mr Brown used a video link from his Kirkcaldy constituency to tell a gathering of UK Copenhagen campaigners that he and Mr Miliband wanted the UN process reformed.

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