You may create default values for your iTunes tags and any custom RSS channel tags used in your Podcasts. The values entered here will become the default tags for all of your Podcasts, but you may override these values in any Podcast if desired by using the iTunes Tags and the Custome RSS Tags tabs in the "Add Podcast..." pane. When you click the "Podcast" tab in your blog's "Setup..." area, two sub-tabs will be visible: "iTunes Tags" and "Custom RSS Channel Tags". The default view is the "iTunes Tags" sub-tab pane.

Blog - Setup: Podcast: iTunes Tags

To set the default iTunes tags to be added to your Podcasts, click the "Enable Custom iTunes Tags" checkbox and edit the fields on the Podcast: iTunes Tags pane.

TIP: For more information about Podcasting and iTunes, including a complete list of the iTunes tags used by by iTunes, go to Apple's Podcasting and iTunes: Technical Specifications page.

If you wish to add default custom RSS Channel tags to your Podcasts, click the "Custom RSS Channel Tags" sub tab.

Blog - Setup: Podcast: Custom RSS Channel Tags

Use the Custom RSS Channel Tags sub-pane to add any tags not addressed using the iTunes Tags sub-pane, or to add any new Channel tags that may be added to iTunes in the future. As a rule, this should be unnecessary, but the ability to add custom RSS Channel tags remains available if needed.