RadioTime
From TGB WIKI
TuneIn Radio for Windows Media Center: Listen to local stations, any kind of music you like, talk radio personalities and podcasts...
Edit: This app is dead and no longer supported. It was a website and the site is no longer available. I confirmed this by trying the app, editing the file, found the website and confirmed it is down.
Currently unavailable at the link blow: http://radiotime.com/tv/media_center