Is there a way to search out a specific podcast by GUID?

Currently, I have to search by the user account ID via XMLHttpRequest, parse the JSON response for the RSS feed, make another XMLHttpRequest to parse that feed for the specific GUID of the podcast I'm looking for.

Is there a way to target that podcast with one XMLHttpRequest call and have it returned as JSON?
Is there a way to search out a specific podcast by GUID?
 
 
Q