My experience is that all of my bluetooth devices fight with each other to capture the TV bluetooth adapter (iPhone 12 ProMax, laptop, etc.). The only way I’ve found not to experience disruption on one device is to turn bluetooth off all the other devices. I suspect it’s more of a bluetooth issue than anything else.
I’m a little lost here on what you’re saying. You said “TV bluetooth adapter”. Did you really mean the Oticon TV Adapter 3.0? Or did you mean the Oticon ConnectClip?
The TV Adapter does not support Bluetooth connection between the source device and itself. It can only accept analog audio input or optical input coming from a TV or whatever other device you may use to drive it. So that’s why I’m confused on what you’re trying to say here.