Itunes

[gria]

I have been listening to podcast on intures for some time now and wanted to know anyone can help me out. I don't want all the podcast that I download to my computer to be there anymore but at the same time I don't want lose the show? I want them to still stay grayed out like before I downloaded a show. I'm not really sure how to do this. I want to get more back from my podcast but not lose them if I want to listen later?

Also if you right click on a podcast what is all that stuff that comes up in a list do?
Any help would be great thanks.