Funny side note: after reinstalling the TV’s hub module, I went to check back on it in http://my.smartthings.com… and now its threadAvailability is set to Available, and there’s a Thread network named ST-TIZEN. Firmware is still 000.047.00011. Er. I guess Thread is supported after all…???
It could also be something that just hasn’t got fixed yet on iOS.
I wonder if this is the answer. The app hasn’t been updated in a month on iOS, and there’s stuff in the logs about 404 error responses to requests to e.g. https://client.smartthings.com/amigo/tariffs. Hmm…
Anyways, time to sleep. Hopefully something will work tomorrow.