Jeremy, iHeart is shutting HD's off because no one is listening. The only ones running are the ones being leased, driving their app streams (save licensing fees) and driving repeaters.

Religious broadcasters are one of the few utilizing HD2+ signals.

IBOC AM is dead. FM HD is on its way. If the US would have avoided the who greases your palm before the circle jerk dance, DAB and AM DRM would have been a much better choice.

Z