Chip listens to iHeartRadio on an internet radio called the Logitech Squeezebox. He's recently lost a lot of stations after an update, though. Leo has a hunch that many of those stations simply dropped out of streaming because of the cost of bandwidth for every single listener who is tuning in. It's a completely different model than broadcast because there's a hard cost. Its more like magazine publishing. But it could also be that iHeartRadio could be blocking the station.
The chatroom says to try OOTunes Radio. It's a newer radio app for iOS that seems to get a lot more stations than most apps. But how long that will last is anyone's guess.