How delete my podcast, and do a new?
That such friends, it wanted to be able erase like the podcast that nowadays towards in Itunes and to create the new one, this with the happened in bliptv with regard to files mp3. Regards!
You can move your podcast to a new one without deleting it.
Create a new version of your podcast on another server. Make sure the feed works and you know its URL (address).
In Blip.tv's site, go to their Redirect Tool and in the 'Redirect URL' field enter the full address (including the http://) of your new feed.
This post has more detail on that:
https://discussions.apple.com/thread/3584417?answerId=17053904022#17053904022