Obligatory warning: This script has been designated as an obsoleted "Retro Script". There is no guarantee that it will function as described with modern versions of iTunes and/or macOS. If used in its current form it may not work at all without modification and, at worst, it may corrupt or destroy data.
iTunes will stop updating a podcast if you have not listened to at least one of its episodes in five days. This script will batch-update every podcast subscription so you don't have to manually update each one individually.
I have posted instructions on how to create a launchd agent to run this script automatically and invisibly in the background to ensure that your Podcasts are always updated.
Possible iTunes bug (July 17, 2014): Looks like the iTunes AppleScript command updatePodcast command is broken as of iTunes 11.
downloaded 13m 2s ago
Swap the name with the artist of selected tracks
downloaded 20m 3s ago
Sort purchased tracks into discrete playlists by name or Apple ID
downloaded 30m 26s ago
Remove iTunes tracks disassociated from files
downloaded 48m 38s ago
Re-associate batch of dead tracks with files from selected folder
downloaded 50m 50s ago
Droplet adds files, creates playlists based on folder name(s)
downloaded 57m 26s ago
Recreate a playlist such that its visible columns mirror the Music library