re: Cheapest way to get cable at a hunting camp?

It's a long shot but if you are close enough to a tower you could try antenna. Not the most convenient, but is by far the cheapest.

Antenna Map

Funny how old technology can come back to popular culture. Like satellite internet with StarLink.

Now this won't work with ESPN, but it works for NFL games if you can catch FOX or maybe CBS.

Otherwise, I would try a smart device like Roku. Roku is also Chromecast/Apple Cast compatible. You could try casting/screen sharing to Roku.