It’s possible, but it seems unlikely that a channel scan would find 14 channels, and yet every one of them (I assume you’ve tried every one!) would produce no signal when you go to watch it.
You mention renaming inputs so I would double-check that you renamed the right one. For example, I think the TV would let your rename HDMI-3 as antennatv, which would cause a “No signal” if nothing is connected there.
Banned but back. Because why not?