Brian Staton dropped me a note just now, letting me know that the version of Windows Media Center in Windows 7 has gotten a significant update today, with the addition of Netflix and a new version of the Internet TV functionality, the latter of which has all kinds of new content, including great TV shows, Zune video podcasts, and more. It's an excellent update, from what I can tell so far, and I will have a short, more formal write-up about this later in the week. Check it out if you're using Windows 7!
Thanks Brian.