I've now upgraded to the new MM3 and have been trying out the new podcasting / podcatching features. All of my audio podcast feeds seem to be working correctly. However, I have a few video podcast feeds that don't download or show anything. I already know that MM can not sync video. However, I was hoping I could at least use MM as my sole podcatcher. I hate to have to go into iTunes to get the few video podcasts I subscribe to.
The thing that is a bit confusing for me is that some of the video podcast feeds download correctly. Here are some examples:
This feed downloads correctly (mp4 file extension):
http://www.podshow.com/feeds/geekbrief.xml
This feed doesn't (m4v file extension):
http://revision3.com/diggnation/feed/quicktime-small
Is it possible the first one works because an mp4 file can be video or audio (I think

BTW, when I subscribe to the diggnation podcast, the information about Title and Description is pulled from the web correctly:

However, when I then hit OK nothing at all shows up in the details pane.
Any suggestions?
Thanks.