It seems that on Sunday Radio Bremen broadcast a recording of one or Marks shows from earlier in the year. A quick translation of the page doesn't reveal any links to on-line versions so I guess we have missed it. Unless anyone out there recorded it? Anyone?
it seem the show is available on Bittorrent. It's available at dimeadozen or hopefully at a good FTP site near you soon. Thanks to LargeHeartedBoy for pointing that out.