The folks at Lifehacker have discovered that Windows 7's Media Center is now able to stream CBS Television, not to mention Netflix's updated Media Center integration and the soon to be Zune video content library support, as well as more integration from MSN and MSNBC.
CBS Audience Network: Featuring a variety of shows from CBS Primetime, Daytime, Extras, and TV Classics, including full-length episodes of current TV shows, CBS Classics TV shows, short clips, and Web originals.
Full Zune Video Podcast Library: Thousands of hours of entertainment with full TV episodes, webisodes, clips, and videos from providers including ABC News, CBS News, CNBC, CNET TV, Comedy Central, Current TV, The Discovery Channel, Fox, G4 TV, HBO, MSNBC, NBC, Showtime, and Revision 3, along with some of the best user-generated videos on the Web. Some video podcasts are also available in HD.
MSN and msnbc.com: Clips as well as full length episodes from TV shows such as Arrested Development, news and weather from MSNBC, editor picks and most popular videos, five day weather forecasts, news, video playlists, music videos, movie trailers and more.