Refreshing iTunes Podcast Listings

This is a tip to allow you to re-download a bad episode in a podcast.

First expand the podcasts episode listings and delete the bad episodes.

Collapsed the podcast by clicking the triangle, so only the heading is shown.

Whilst holding down the option (alt) key, expand the triangle.  

This will cause iTunes to totally update the podcast.

Any missing episodes will be back in the podcast list and you should also have the option to click ‘Get’ to re-download the podcast.