@AndyOW: Please can you confirm the model number of your TV, located on the sticker on the back of the device, or in Settings > Support > Contact Samsung, and I will look into this for you. In the meantime, can you confirm if you have tried connecting the headphones to another compatible device?
I have the exact same issue with my Q70R. Did you find any solution for this issue?
My TV Model: QN65Q70RAFXZA