Dunno about blind luck, for the radio was on ....
AM : One SSS, I tuned to 900, literally a few doors down on the dial from a huge WCBS 880 signal. Some DJ gave 'the weather for Bath, Brunswick and vicinity'. The logbook's most likely possibility was WCME in Maine. I checked the map, sent them a QSL request -- and got one back! That's the way they introed the weather.
The verie, for maybe four seconds' worth of listening, remains my TSL record, lol.
FM: Up here in NE PA I had a little Ramsey FM part-15 transmitter and decided to check its 'coverage'. I hooked it up to literal rabbit-ears, plugged a casette deck into it for music, and got in the car to do 'field measurements'.
I could've saved gas and just walked. It went maybe 200 feet -- before being knocked into oblivion by E-skipping Oldies 108 -- WSRZ Sarasota FL.
TV : I'd mentioned somewhere else about the time we bought a nice new Radio Shack aerial -- the 90-mile one. Surely we'd get the three Wilkes-Barre/Scranton UHF's better. WB/Sc is maybe 40 air miles. And we did get them nicely. But first, just going up the VHF knob, the clearest and loudest thing there was that pest WFTL channel 2 from Miami.