To add my $0.02; We have a Bose soundbar with an optical input. I wear hearing aids and have a TV adapter that plays directly into my hearing aids.
I needed to get an optical splitter to take the output from the cable box and split it to my adapter and the soundbar.
I also agree with comments about the sound on some programs. There are times we have to run the program back and add CC to understand what they are saying.