First, thank you Steve and the whomever helps you make Escape Pod. It's my favorite podcast by far, and is really well done. It's obvious that you enjoy doing it. I hope you get some significant financial reward from it too; it's certainly warranted and would inspire others to get into creating such high quality programming.
One minor suggestion: when you review past episodes on your podcast, it would help if you were to give a one- or two-sentence plot summary before going into the comments. Sometimes, I'm listening a few weeks in arrears, and in any case I often can't remember an episode just by its name. Just something to jog the memory, not a spoiler (in case I haven't heard the episode in question yet), would be great.
Another comment is that some of the narrators have very heavy accents, which detracts from the experience for me. The nature of podcast listening is that it's often done in noisy places, on the run, exercising, coffee shops, etc., and battling a heavy accent is a turn off. I realize that this is an American-centric comment, but there's not much I can do (except turn up the volume).
Thanks again, and keep up the great work!