It turns out that iTunes 4.9 supports vidcasting (or “videoblogging,” if you prefer), video items embedded into weblog entries. Lifehacker explains how to do it:
1. In iTunes 4.9, choose “Subscribe to podcast…” in the Advanced menu.
2. Paste in the URL of your feed, like say, http://feeds.feedburner.com/TheLastMinute
3. iTunes will display the feed, and start to download the most recent item. Under the Edit menu, select “Show Artwork.”
4. Double-click the item you want to view and it will play in the Artwork panel. You can go full screen by clicking on the right-most button in the set of buttons on the lower left under the Artwork pane.
Nifty! Post-brodcast TV, here we come!