What I did when I was podcasting my radio show was to have a category in my blog. That category had its own xml feed (I was using Movable Type
and the MT Enclosures
plugin) which was sent along to Feedburner. This way all entries would be arranged by date but be easily searchable through the search function. There can also be subcategories (comedians, musicians, etc). This also helps because you could publish the podcast with the TSOYA blog. You could make all the old episodes blog entries and backdate them to their airdate, and that way they'd be searchable with the blog (because really the podcast, blog, message board, tv station, and all other forms of communication are really branches of the same thing and they should be integral to each other, no?) The blog entry would be the podcast's description. Maybe this is a bigger change than your question but that's one way to do it
Yeah, this is pretty much what I'll be doing when the site redesign is done, but right now, I'm using "old" blogger, which doesn't even offer categories. And I can't upgrade to "new" blogger because... well... who knows, it won't let me, even though it's always taunting me with a big ad saying I should upgrade now.