I have a JBL sound bar connected to a Sony bravia (kd65x8500) TV via optical audio cable. The problem I have is the sound bar has an auto on feature when it detects a signal through the optical audio cable. The TV always sends a signal through the audio cable even when it is in stand by mode so I can not turn the sound bar off because it detects that signal and turns its self back on. I have tried all the settings on the sound bar and TV I can think of and nothing works and I have contacted JBL and Sony tech support and no help there either. Using hdmi arc is also not an option unfortunately. I was wondering if anyone knows of a device or a way to block or switch off the optical signal when the tv is turned off (ideally short of unplugging the cable each time) when the tv and sound bar are turned off or a way to stop the tv sending the signal that keeps turning the sound bar on. Thanks in advance for any help.