Last week the Oakland A's announced their play-by-play will only be available online. Now https://www.mercurynews.com/2020/02/19/first-the-as-audio-broadcasts-went-digital-only-now-the-sharks-are-giving-it-a-try/ the San Jose Sharks have announced certain games will be only available on their mobile app. Is this the beginning of the end of OTA sports broadcasting on the radio? What sports and markets are most likely to go digital only?