Radio Userland had a built-in aggregator, it provided both the "send" and "receive" components of what was then called "audioblogging".<ref>Gilchrist, Harold October 27, 2002 Audioblog/Mobileblogging News this morning I'm experimenting with producing an audioblogging show... </ref> All that was needed for "podcasting" was a way to automatically move audio files from Radio Userland's download folder to an audio player (either software or hardware)—along with enough compelling audio to make such automation worth the trouble. In June 2003, Stephen Downes demonstrated aggregation and syndication of audio files in his Ed Radio application. Ed Radio scanned RSS feeds for MP3 files, collected them into a single feed, and made the result available as SMIL or Webjay audio feeds. The first on-demand radio show and the first podcast In August 2000, the New England Patriots launched the Internet radio show PFW in Progress. It was a live show that was recorded and made available for on-demand download to visitors of Patriots.com, although this wasn't technically a podcast at the time, since the technology had not yet been invented to automatically download new episodes—a key differentiator that sets podcasts apart from simple audio files that can be downloaded manually. In 2005, two years after the introduction of the iTunes platform, the show was also offered there as a bona fide podcast. Today, it is still in existence, under the name Patriots Unfiltered, and is available on all podcast platforms. The first podcast, however, was IT Conversations by Doug Kaye; the show ran from 2003 to 2012. In September 2003, the aforementioned Dave Winer created a special RSS-with-enclosures feed for his Harvard Berkman Center colleague Christopher Lydon's weblog, which previously had a text-only RSS feed. Lydon, a former New York Times reporter, Boston TV news anchor and NPR talkshow host, had developed a portable recording studio, conducted in-depth interviews with bloggers, futurists and political figures, and posted MP3 files as part of his Harvard blog. When Lydon had accumulated about 25 audio interviews, Winer gradually released them as a new RSS feed. Announcing the feed in his weblog, Winer challenged other aggregator developers to support this new form of content and provide enclosure support. Not long after, Pete Prodoehl released a skin for the Amphetadesk aggregator that displayed enclosure links. Doug Kaye, who had been publishing MP3 recordings of his interviews at IT Conversations since June, created an RSS feed with enclosures, thus creating the