Beullpilot on The Green Button forums has offered a tip on getting NASA’s streaming TV feeds into your Windows Media Center. He directs us to the website http://www.nasa.gov/multimedia/nasatv/ where you can access the Windows Media download by right-clicking where it says “Windows Media” and choosing “Save Target As.” However, the Hack7mc site made it even easier by providing a downloadable zip file in their SkyDrive that contains all the files you need. After adding the contents provided to the Videos section of your Media Center, you should be able to then see the four NASA feeds available.
Since this trick is accomplished by downloading ASX files from sites that stream Windows Media files, it could be done elsewhere on the web, too, anywhere ASX downloads are available. Know any others? Comment here or on the original post.