@ARE_you_kidding_me; That’s a really interesting suggestion, in the abstract. I’d have to hire a giant strong guy to swap the TV’s. Up and down three flights of stairs..unbraiding all the many cables neatly wrapped…
Initially both TV’s received all the channels. One day mysteriously, after receiving Fox for years, it disappeared in the basement TV. Then a subsidiary of CBS that shows only old movies vanished from the upstairs one when I click the auto channel up-and-down button. if I program the individual numbers of the channel into the remote, the signal does appear. (The movies are terrible so I don’t miss the channel.)
At the moment it seems a daunting project…paying some guy to clomp up and down all those stairs carrying 46” TV’s. I am interested only in the intellectual problem. Losing Fox on one TV is no hardship.
Out of interest, how can I tell where the cable is split? The coax. cable runs from the roof antenna directly into the upstairs TV as far as I can tell.I will have to investigate how the basement cable enters the house after the snow has melted and the snow fences are down. But that one is the longer of the two and the furthest from the roof antenna.
@zenvelo. The cable itself acts as part of the antenna, so the one on the lower floor may be receiving a signal differently than the one up stairs. That makes the most sense. In the last four years I began to receive mysteriously five different shopping, cartoon, and infomercial channels also at the high end of the non-cable channels. Often the pixels waver and/or break up.