Once in a while a couple over the air tv stations have bad reception. It seems to have something to do with the weather.
But when I record shows on a timer, I don't remmeber what the weather was like. And a couple weeks ago the only show I record started to have distortion pretty often. Eventually I noticed it was channel 2, a major, local station!
I didn't know what to do for a couple days, and then it dawned on me. I have 2 A-B switches screwed to the shelf next to my bed that holds the radio, DVDR, VCR, cassette player, Alexa, and some little things.
And I think 6 months ago my DVDR stopped working and it took an hour to figure out why. Apparently in my sleep, I switched the tv input from the DVDR to the VCR (and the VCR wasn't turned on.)
And this time I guess in my sleep, I switched the A-B antenna switch to the 2nd floor antenna, which is not as good as the amplified attic antenna.
It's strange, I haven't touched those switches on purpose for more than
4 years, except after I change one in my sleep. It's hard to believe I changed but there is no other explanation.
It's really nice to have a good picture on the tv.