If you no longer want your podcast listed in iTunes, you can request to have your podcast removed using the Report a Concern feature in the iTunes Store.
- Open iTunes and sign into the iTunes Store.
- Find and select your podcast.
- Click Report a Concern.
- Select "Remove a Podcast" from the Choose a Reason menu.
- Explain why you want the podcast removed.
In most cases, Apple will remove the podcast from iTunes, especially if
they find that the podcast is no longer available at the feed URL.
If you want to remove your feed temporarily, you can use the <iTunes:block> tag described in the iTunes RSS Tags section.
Original information located at: http://support.apple.com/kb/HT1818
Article ID: 96, Created On: 11/8/2011, Modified: 11/8/2011