It's been a while since Microsoft added any content to the Online Media showcase for Windows Media Center. But it looks like the company is getting ready to make up for that with the launch of an internet TV platform for Windows Media Center.

Engadget managed to get a few details about the upcoming service, but it looks like we'll have more to tell you on September 27th when Microsoft launches the service at Digital Life.

Here's what we know so far. The platform will feature on-demand advertising supported content in categories including Sports, Entertainment, News, Top Picks, Music, and Movies. The video will not be HD quality, but it should be better than standard definition, which means it should look great on an old fashioned TV and hopefully passable on your HDTV.

With Microsoft building Media Center capabilities into Windows Vista Home Premium and Windows Vista Ultimate, ad-supported online video seems like a great way for the software company to make a few extra bucks. Depending on the content available, it might also be a way for consumers to save a few bucks on their cable bills.

But while we can hardly wait to see this feature for ourselves, we remain a bit skeptical. For example, just because one of the categories is titled "Movies" doesn't mean you'll be able to watch ad-supported new releases, or even hits from yesteryear. It could just be a library of movie trailers.