oic; Youse guys are wondering if Phonak is messing around with your audiophile signals by providing you with a sub-standard device to use as your audio source?
Streaming via TV connector (or streaming via whatever) can only provide stereo sound because you only have two channels/aka-two hearing aids. That 2-channel limitation is preset for all streaming sources (TV connector or whatever).
But all is not lost because you can still pickup (surround-sound/side-speakers/sub-woffer sounds) through your hearing aid mics so you can still enjoy the dramatic/scary/explosive events.
I think you should look at the benefit of streaming as this; It helps you to understand dialogue.