So I have a Samsung tv plugged into my Bose soundbar. That connection is a digital/optical cable. There is also a firestick plugged into the tv with an HDMI cable. My problem is that I can only get audio off the firestick through the tv speakers. No sound when I select "external" as a sound source. BUT if I run the sound test on the tv it will play through the sound bar when I have it selected to "external" . It will also play the sound test through tv speakers. any suggestions? The tv is probably 8 years old and the Bose sound bar is this years. I've tested the sound bar with a Vizio and an Insignia tv with no issues. Anybody have a clue??