Polk Magnifi mini not playing TV sound

So we've had this Polk audio sound bar for awhile. Recently had a brown out and the sound bar stopped playing sound from TV.
I've reset the device, swapped hdmi cables, tried brand new optical cable and nothing. I'm able to add the device with the Google home app and play sound off my phone but no matter what it won't play the TV audio.
When the device is on, the TV senses it and seems to control the volume with no issues but no audio. I've played with the TV options but still no changes. The TV is a Sony A8H.
I'm hoping to try the aux cable this weekend but I don't have high hopes of it working. Anyone have any ideas of the issue or any resolutions? Would really hate to replace it and use it as a glorified Bluetooth speaker but it is what it is I guess. Any help is greatly appreciated.