Facing TV Problems? Ask a TV Technician.
Hi, I'm Nathan.Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review and reply.
Have you disabled the tvs own internal speakers?
Okay if you are using the hdmi/arc connection, no programming should be needed at all, the tv should relay volume commands to the soundbar. At least that is the intent, when using "off brand" systems like the sabre, and when mixing different manufacturers though this often just doesn't work in the real world as there are many compatibility issues.What you can check is going into the lg menu to make sure that the hdmi control (cec, anynet, etc) functions are all enabled.
If that still doesn't help, then the tv remote is not capable of controlling this particular soundbar and you'd have to either use 2 separate remotes ofr them, or consider returning the sabre and getting an LG soundbar instead that would fully integrate with the tv.