We've tried this for a long time, to varying degrees of success, with public radio. I don't mean NPR although that will usually be a decent portion of local public radio.
I travel all the time. All over the US, although lately it's been limited to the middle/north east coast and Midwest. It's pretty fun to tune into the local public radio if you're close enough to get a signal. They can be really insightful like WAMU in DC about local stories.
They can be terrible like my local station that can only afford to run 1A (which is a good show) and a few localish music shows. The rest of the time is literally filled with fucking classical music. It's painful to listen to. Sorry to all the Bacchists and Mozartists out there but this shit sucks.
Anyway, check out the low end of the FM dial when you're traveling, you might collect some stations you like that you can stream later.
I've listened to public radio quite a bit. Right wing talk radio is fundamentally different. Hannity, Limbaugh, Alex Jones and their ilk are actively radicalizing listeners and intentional ideologues. Public radio is news, informational/educational content, and political debate. They're different in almost every other respect except that you use your ears for both.