We are assuming though multipath IS the problem, and I honestly don't know. This TV's ATSC tuner doesn't show signal strength. I have one in a bin in the car that does and may need to use it.
https://i.imgur.com/7QeuPa5.jpg
The TV is North of my bed where I'm sitting, so the window there is East. There is a window south as well behind me.
The only reason I haven't chosen to use my Roku which I do have next to the TV unhooked right now, is I have no subscription to anything. I'd be stuck using Crackle and YouTube basically, no Netflix. Can't afford it. And as far as I know, using the local station apps require me to have some kind of account with the ISP? My grandparents won't provide me any credentials, they honestly don't know it. It's a lost hope with them, I'm lucky to have wifi right now.
This is the TV fool for the exact address I am currently at:
https://i.imgur.com/KQCIzFn.png
You can see the cheap antenna I'm currently using and where it's currently located.