Jun 23, 2011 (04:06 PM EDT)
Update All Your Podcasts at Once
Read the Original Article at InformationWeek
BYTE -- Open iTunes to the list of Podcasts and use the keyboard combination [Ctrl] [A] to highlight the entire list.
Then right-click and select Update Podcast from the context menu. It will check for updates and download all your podcasts at once. So much better than getting them piecemeal.