DiscoveryPlus is usually a good service because you can watch on a delay, it's just strange they are not listing it for the UK this year.
I don't think they're showing it on YouTube at all. they have some streams scheduled but it's all figure skating. I used to enjoy the official YouTube streams before the Eurosport deal. Also their website doesn't show any YouTube streams for the Short Track World Tour.
Well, I've emailed the ISU at info@isu.ch as a last attempt but I don't expect a response. Hopefully I can find it somewhere, it's one of my favourite sports.