on 1/1/2024 My son installed a new Soundbar. (No Sub Woofer) It did a firmware upgrade. Now I can no longer access my 81+ Antenna TV channels in my local area. I have access all of the ROKU channels but
none of my local TV channels are any longer available to me. What can I do to get them back?
Are you sure that you have a soundbar and not a streambar?
What you are describing sounds like you added a streambar, which is a soundbar with a built-in Roku. If you then changed to the input where the streambar is connected, it would look much like the Roku TV interface, but it would be missing the TV-specific parts like the local/over-the-air TV channels. If so, to get back, you would pick up the TV remote and change the input back to the antenna.
I suspect a Roku steambar or player connected to a Roku TV can be confusing until you pick up on details.