May 10, 1982. Noon.
WABC -- Musicradio 77 in New York and one of the biggest Top-40 radio stations ever -- became Talkradio 77. Decades on, radio fans refer to that day as "The day the music died."
At 12:01 p.m., May 10, 1982, there was only one Top-40 AM station standing in New York, 66 WNBC. Top-40 held on there for a time, but then WNBC evolved into more of a talk station with bits of music here and there.
And then, in 1988. . . .
After 66 years on the air, WNBC was no more.