I feel i'm missing out on something here, I have an Iphone and good headphones:

Do I need to download anything, in order to play podcasts?

Do I then use whichever app to download the podcasts?

Do they delete after a period of time or do you need to delete them?

Can you part listen (ie pause and pick up again at that point)?

Any recommendations for good podcasts?

Thanks in anticipation of any help.