User\YourUserName\Music\iTunes\iTunes Music\Podcasts
Podcasts playlist in iTunes is empty
If the podcasts playlist in the Source list of iTunes becomes empty unexpectedly, don't worry—they're still on your computer and can be easily added back into iTunes by following these instructions.
1 Open iTunes.
2 Open iTunes Preferences:
Mac users—From the iTunes menu, choose Preferences.
Windows users—On the Edit menu, click Preferences.
3 Click the Advanced tab.
4 Click the General tab in the Advanced pane. Your iTunes Music folder location is displayed at the top. Make a note of this location.
5 Click OK or Cancel to close the Preferences dialog.
6 In iTunes, add the podcast files back to the Library:
Mac users—From the File menu, choose Add to Library.
Windows users—On the File menu, click Add Folder to Library.
7 In the resulting window, navigate to your iTunes Music folder (the location you noted in step 4), select the Podcasts folder inside of it, and click Choose (Mac) or OK (Windows).
iTunes will add all of your downloaded podcasts back to your iTunes Library and to Podcasts in the Source list. To resubscribe to your podcasts, select Podcasts in the Source list, then click any desired Subscribe button.