Hi, I'm having a problem with the TV <> Wireless subwoofer combination (and from the looks of it many people are having the same problem). I've completed all the installation correctly and the light of the Subwoofer is solid green. Every time I turn off the TV and turn it back on however ALL the sounds comes from the Subwoofer (i.e. no sound come from the TV speakers). The way to fix is it to go in Headphones settings (which is correctly set to Subwoofer), change it to headphones and then back to subwoofer. 

A factory reset seems to solve the problem temporarly. 

Sony... please advise on a permanent solution or update the firmware. This problem has been persisting for a while from the looks of it (see thread in the US community):

https://community.sony.com/t5/4K-Ultra-HD-TV/KD-65X8505C-amp-SWF-BR100-subwoofer-problem/td-p/521124