I've now moved these shows to their own subdomain, and put a simple no-frills podcast in place, so you can subscribe to the feed and automatically get each week's show as it appears online.
Previous weeks shows are in there too, though not ordered by date yet - I'll work on that one sometime.
Redirected from the old links too, so it's all sweet. I'll keep posting here each week anyway, but if you want automatic access to the shows as soon as they're up, then subscribe to the podcast!
You can also see a list of the files here.
