How can I see the old episodes of a podcast on iPad? I have noticed that I cannot see all the episodes of a podcast in the feed section, even though I see it on the podcasts website. Can someone tell me how I can access the older episodes ? 
I'd like to watch some episodes not being shown on the app but available on the website.

Thanks.
It depends on the author of the podcast. Some authors limit their podcasts on iTunes but do offer them via their website (it gives them extra traffic).