alt Hacker News> Most TV and radio stations.
I doubt it. And as I said, telcos have ceased new sales of ISDN and will be shutting down copper networks within 3–5 years.
Therefore if there are still TV and radio stations still using it, they will be forced to stop using it by circumstance, i.e. they will find their ISDN will cease working after the telco shuts down the kit in the exchange.
You can doubt it all you want, ISDN is used internally in broadcast all over the world. Telcos shutting it down has nothing to do with them and won’t affect them.
Losing support in software however, does.