Listening to audiobook of King's 11-22-63. Some radio mentions...some inaccuracies, but hey
if you can believe that time travel is possible, then...
--Jake is sent back in time to the fall of 1958 and at one point is listening to WJAB, The Big Jab
1440. In the real world "The 1440 frequency first went on the air November 8, 1959 as WJAB"
(Wikipedia) but this is the year before then...
--Jake listens to oldies on XM Sixties on Six
--A woman Jake talks to should have died at the age of 7, but his actions in going back in
time has her living to be at least 60. Occupation? "I'm a DJ at WKIT." Owned by...guess who!
--During Jake's time in Dallas he starts singing the Stones' Honky Tonk Women and his girlfriend
is offended by the song--which wouldn't be written and recorded till 7 years afterward. She gets suspicious. He tells her it was a song he heard on KLIF. She's still suspicious.
That's the great thing about time travel. You can keep going back and forth, suspend logic/reality, etc.