The audio on this channel sounds like it's "surging". It is like an automatic level control or limiter has gone wonky. It might just be on the OTA signal here, but I wondered if anyone else is hearing the same.
One of our TV's started doing that intermittently, and progressively worsened until we just replaced it. Googleing the condition indicated it is an audio problem not uncommon for that TV model.
Our LG TV has had two LED diffusers come loose and make two bright spots on the screen. The screen needs to be disassembled and the diffusers re-glued into place. Not uncommon for that model according to Google.
These flat screen TV's don't last like the old CRTs. A suspicious person might think it is planned obsolescence.
I sent the folks at Comet an email to tell them what was going on. They emailed me back to say they knew and are working on it. Guess that saves me a trip to Best Buy.