Didn’t get to do more there. Like I said, it was hard to get a few moments to plug in the Mini. And they were busy, which didn’t help. And when he talked about the Sony, he also made an immediate point that we couldn’t test it (it was quite high up. I don’t think my cable would have reached anyway. The others that were down low were 1080p tvs.

I can maybe try another Best Buy and see if they have accessible models.

If Apple has set their screens in some specific way, it is unlikely I’d be able to track down every setting and compare. I have a hard time finding settings I found before on just the one here!

Your point about restarting/replug the 23 inch TV may have been a factor. I just can’t be sure now when I did that. Sometimes I’d have to unplug something to make room for something else. Or because I moved something. I don’t think I moved that TV during all this. I know I unplugged it at least once, but don’t recall when. I think it was after it already started working better, but I’m not sure.

I have unplugged the 4k screen numerous times without it helping.

If it is a problem with the Mini, I have no easy way to find out. After all, so far I only know of one model TV it doesn’t work with. I don’t have access to any other mini to plug into my TV. I’m pretty sure the Apple store isn’t going to lend me one! And I can’t take the time to return this one and get another without possibly running out of the return window on the TV (the local store said they normally just carry the base models).

If I can’t figure out something soon, I’ll probably just have to return everything and start the whole process over again.

Already having trouble getting mail accounts set up so I’d still have that issue on a new machine plus the hassle of redoing what I’ve already done.