The app can be downloaded and used for free on selected Samsung Galaxy devices from the Google Play store: https://play.google.com/store/apps/details?id=com.samsung.mdl.radio
Some screenshots: http://imgur.com/a/cB7qB
The broadcasts are from radio affiliates of IMG College, Learfield Sports etc. so they often feature the hometown broadcasters calling the games (and some users especially like using DVR to sync the TV broadcast to the app audio).
Disclaimer: I work for SportsLabs, a Samsung partner on this application, and I'm happy to answer any questions you have.