The DRM Consortium has been working with HFCC to develop a new and easy to use DRM broadcast schedule. The first link is an easy to read "by a glance" listing, the second allows you to choose specifics of the broadcasts. I hope these will help in locating something to listen to! Unfortunately, few of the current broadcasts make it to North America very well.
http://www.hfcc.org/drm/
http://www.hfcc.org/schedule/