If you have a PLAYSTATION 3, Xbox 360, or HP MediaSmart TV, PlayOn lets you watch Netflix, Hulu, CBS, YouTube, CNN, ESPN and more on your TV. Also, un up coming update will add support for Nintendo Wii in early 2009.
PlayOn Media Server is software you install on your Windows Home Server via Remote Desktop, you’ll have to upgrade your version of Windows Media Player from v10 which ships with WHS to version 11. Once you have the upgrade completed, you can install PlayOn and you’ll immediately find it appears as a media server option on your PS3/Xbox 360/DMR. Click through and you’ll see options for Netflix, Hulu (both US Only) and YouTube listed, along with a stack of news video content from ESPN, CNN and others.
More info: PlayOn Media Server