I like to download the Ogg/Vorbis codec instead of the MP3 edition when subscribing to a new show.

Sometimes when I search directly for the Show that has OGG in the title, it still doesn't find the show. I don't know if the show publisher is not advertising their OGG feeds or not.

It is a bit cumbersome to have to search the web for navigate to the publishers site to grab the OGG feed for a show. This minimizes built-in Podcast search function.