In addition to WEPN HD2, almost daily for at least a few weeks, at least one of the local Clear Channel HD2 channels has been broadcasting an open carrier for a few hours a day. Often this happens with two or more simultaneously. Usually the on screen display continues to show the names of the songs and artists in a normal manner, but there is no audio. In fact, as I am writing this, both WAXQ HD2 and WLTW HD2 are currently operating with this issue.
Perhaps the computer system has been losing the feeds from IHeartRadio?
The channels had been functioning reasonably reliably over the past year. So I wonder why they are experiencing so many problems now.
With regard to the new Nick Radio stream on WHTZ HD2, it seems to be a vast improvement over the former one on the channel, which endlessly repeated the same few interviews with current pop stars. Nick Radio is quite music intensive, so I believe adults that like Top 40 music can enjoy it along with the kids, with few if any commercials. It doesn't have the breathless hype that permeates Radio Disney's programming.