Our reception via antenna all depends on the weather. Some days we scan and find 90 stations lock in..only to disappear a few moments later. Nothing is more annoying than to attempt to watch a broadcast that pixelates constantly.
Best reception seems to appear after a storm. Clean air? Clouds? Why then is certainly a mystery.
How good is your OTA antenna? Maybe you can go higher and bigger?
https://purdylounge.com/how-to-build-a-40-antenna-mast/
I live in an Antenna Signal Hole in South Florida. I have an antenna up for the TV, but, we live on a sailboat and just can’t pull in signals from more than 30 miles or so. A lot depends on what way the bow is facing during the day.
One day, I hope to put an antenna up on top of the mast (48ft) and that will fix many issues.