AppleTV latest tvOS will no longer connect to Bluetooth speaker

I have a Hitachi W200 speaker on my wall that I have been using as a bluetooth speaker for my AppleTV. After upgrading the AppleTV to the latest tvOS, the AppleTV will no longer connect to my bluetooth speaker. The speaker is wired through the wall and connected with a unique power plug. It is not easy to replace with a different brand without cutting holes in drywall, respackling, and repainting, which I don't really want to do. I have tried further upgrades to the latest beta tvOS, but the speaker still will not connect. I am not sure if Apple is working on a fix for this, but if there is a way to downgrade my AppleTV to the previous version, this would be great as I like watching TV with the speaker.

The AppleTV is behind the TV. The speaker is below it. This has been working fine until the latest tvOS update. I don't have an easy way to replace the speaker. For now, I have just not been using this TV, because I generally like to watch TV with sound. If anyone has an idea of how I can make this work, please let me know.

• Dave