Why don't linear streaming news channels like CBSN launch as subchannel OTA? The 3 big broadcasters NBC, ABC and ABC have launched linear streaming news channels that are exclusive to streaming. Why don't they also launch them as subchannels OTA? It seems logical as you have a linear feed ready to go already? Surely OTA is just another platform to broadcast. A subchannel called Newsnet launched in January similar to these streaming channels but OTA. Why would they not?