Are you talking about the website template?
By default that only lists type S tracks. If you assign your podcasts to a different songtype (i.e. X - Other), they won't be listed online.
Going by category would require changing the templates.
Yes it was what I did but for strange reasons, it was not working.
At this point, I followed a suggestion I found in another topic: creating a category that's out form track, and add the playlist with the broadcasting up there AND applying what you suggested.
Well, it took out the broadcast from the HTML request list.
What's strange (to me) is that I didn't even added the broadcast playlist to any category. I import it, just with an event, selecting the playlist (a m3u with inside the parts of the episode alternated by some Jingle etc ... )