On April 12, 2019 at 10:13, SWOInstaller said...
...with cable boxes now, there really isn't a fool proof way to achieve certainty that they are On
That is the truth of the situation. It is not the answer. There is no answer. If the original post is accurate, what he wants to do cannot be done.
You propose having a screen with a question like
...have your installer place a subpage on the cable box screen of the remote (assuming there is a screen) with the question whether there is picture on the TV or not.
This is suggested despite this from Post 1:
Despite being fully capable of pressing the "power" button on the locally placed cable boxes, he doesn't want to have to do that.
We also have:
Open to suggestions. Budget is not an issue.
Solution is simple. Hire a person to push the button when needed.
Yes, that's a smartass answer, but it puts in strong relief how ridiculous it is if the client insists on not having to push a button from time to time.
Client could also buy the cable company and make the changes we all complained about in this thread. Budget is not an issue.