re: #23 FFL (GOP Delenda Est)
I remember living in northeastern NY state in the early 70s and being able to pick up a Chicago AM station late at night fairly clearly on a cheap transistor radio.
Less interference after the sun went down and I think the older stations* were allowed to boost their signal strength after a certain time.**
* - I seem to recall that KDKA in Pittsburgh has a fairly senior license. And the station I picked up in Chicago was probably WGN.
** - I seem to recall an Outer Limits episode where someone boosted a broadcast signal and inadvertently sucked an alien to our planet from elsewhere.
KDKA has the most senior commercial license, made its first broadcast of an election in the 1920s. Thatโs why it and Pittsburgh rival KQV have โKโ callsigns though they are East of the Mississippi, in โWโ country. They antedate the distinction.