Here's a cool add-on for Windows Media Center that lets you access FM radio stations from around the world via their Internet stations or your FM tuner...

Your Onscreen Guide to Radio

Browse RadioTime with Windows Media Center!

Get unlimited FREE access to thousands of DJs and on-air personalities
from your zip code and around the world! Listen to internet radio or local FM stations.

It appears to work in Windows 7 by the way.

Thanks to Adwait K. for the tip.