Latest Multisite Posts on Parent Site

I’m currently working on a “podcast network” site, where the parent site is the hub, and there is a child site for each show, so the hosts can add their episodes and posts, etc.

I’m looking for a way so I can have the latest post from a child show up in my parent site, ordered by most recent posting, but I’m having an issue finding such a solution out of the box. Ideally, I’d like it so that I can filter it by category as well. I don’t need every blog post on the hub, but I would like the latest podcast episode in the “podcast” category.

Thanks much, in advance!