Podcast or Online Audio?

This post came out of discussions that took place at ATIA about the definition of "Podcast."

According to Wikipedia, a podcast is:

a media file that is distributed by subscription (paid or unpaid) over the Internet using syndication feeds, for playback on mobile devices and personal computers... A podcast is distinguished from other digital audio formats by its ability to be downloaded automatically, using software capable of reading feed formats such as RSS or Atom.

In my head, if it's syndicated audio or video, then it's a podcast. The method of playback is irrelevant - it's the method of delivery that makes the content a podcast.

If you go to a website, and they have a video that you can watch online, but not subscribe to, is it a podcast? Or just online video?

Perhaps it's just all semantics, but what are your thoughts on what distinguishes a podcast from audio or video that is played online? Please leave your comments below.