Quick background. Watch movies maybe once a month if that. Cut the cable long ago. Had Amazon Fire Stick connected to Sharp HDTV using playbar, mini-sub and play:1’s for rear sound as home theater setup. Had worked flawlessly for 10 years. Fire Stick started acting up and lost TV audio thru playbar around same time at some point earlier this year.  Assumed it was issue with Fire Stick. Finally purchased new Apple TV and was excited to set up but that quickly evaporated once I realized I was still not getting any audio from tv to playbar. Since the only physical connection is via optical cable I purchased a new one just in case. No matter what rabbit hole I went down I cannot get the Sonos app to recognize my optical cable. No settings on the tv have changed and if they had its a simple switch from fixed (internal speakers) to variable sound (external). This has consumed me for 2 weeks now and I’m at the point of giving up hope  

I plan to call support to see if they can help but am not feeling confident after reading multiple threads with similar issues. I haven’t read  any recent threads with a definitive fix. I’ve updated the system in the last few days. 
 

Just ranting about my frustration. Will post if by chance Sonos support is able to get my home theater system working again.