

Tl;dr at the bottom (sorry)
That is a good question. Now I genuinely don’t know how it works in bigger / more dense metro areas but in gods cuntry anyway the transmitters are often 25+ miles away and don’t necessarily contain all the channels one can get. I couldn’t find an accurate or updated list of the stations I should get on any of those “free digital tv channel” websites that even list one of mine as a possibility, so it’s out there but idk where. There was a GIS from NASA I believe that shows all the various public and private/commercial comms towers and such (I’ll see if I can find it again) that had promise, sad allusion unintended, but I couldn’t get it to load on my phone and can’t look at a desktop so soon in the weekend, lulul.
I also read something about close frequency signals having to be physically separated to avoid interference which was depending on power output I believe (yayyy electromagnetic equations).
Additionally also, I can’t remember which channel since it’s been years since summer, but one of mine (and all its subchannels) would always lag a bit on a hot sunny day but would do fantastically in the rain. The other one was more or less the opposite. I’ve since repositioned it and have had clear picture/audio almost constantly that I’ve noticed.
TL;dr:
I’m pretty sure they’re on entirely separate towers based on maps and prior reception differences.
Can’t figure out if AI, shop job, or modern art piece…
Or maybe some guy took adderall for the first time, idk