http://www.dopplerradio.net
Doppler will let you aggregate audio and video enclosures including Channel 9 or any other podcast, etc to pretty much ANY device. For windows, it works great to use it to "talk" to Windows Media Player 10, which can easilly sync content with/to your media device, be it an MP3 player, portable media center, or whatever.
I use doppler to grab Channel 9 videos, as well as to get MP3 podcasts (or WMA if available) to synce to my Rio Carbon, every day.
iPod not required. Note that the term "podcast" is a misnomer for sure - it has nothing to do with iPod devices themselves. Any MP3 player will do.
Or if you are nto using any portable player, you can just store them on your computer and listen/watch there without using a portable device. It will automatically add the new items to a playlist for you.
- greg