Viewing Podcasts on Tivo: Help me understand

I can search and subscribe to many Twit podcasts using Find Movies, TV from the Tivo directly. Other podcasts do not show in the list. Is there a way to add an RSS feed to Tivo and catch casts this way? There are some that I have to watch using youtube and would prefer a season/one pass if possible. The podcast I am curious about is cord killers with tom merritt.



Thanks,

J.