@nedunla -> I’m guessing that you may have some kind of radio interferences in your environment that competes on the same frequency band as the TV Adapter, which may cause dropouts in the transmission from time to time, prompting the reboot in the HAs. Just the fact that you tried different OPN S1s and also a different TV Adapter to no avail suggests that radio interference in your environment may be the case. The TV Adapter transmits to the OPN S via the CEVA Riviera BT Low Energy protocol. Usually it’s in the 2.4 GHz range. If you have other devices in your home that may transmit around this frequency range, they may cause contention with each other. If it’s not the HA or the TV Adapter, I think trying out the More to see if it’d resolve the problem or not may not be a guaranteed success. But it doesn’t hurt to try, although if the More demos are not available, don’t sweat it too much because it’s more likely that you’ll see the same problem. Also the fact that others (myself included) don’t get the random reboot of our Oticon HAs when using the TV Adapter suggests that the issue is specific to something in your environment.
What you can try to do is if the device you use to drive the TV Adapter has BT, then maybe try out the connection to a ConnectClip instead of the TV Adapter instead to see if this improves. The ConnectClip uses the same CEVA Riviera BT LE protocol as the TV Adapter to stream to the HAs, but if it’s worn closer to your OPN S so that the streaming signal is stronger than the distance from your TV Adapter across the room, then maybe it’ll help. It doesn’t hurt to try as long as your driving device supports BT to use with the ConnectClip.