
The movie is pretty terrible and steeped in a druggy, late-70s, post-hippie, Los Angeles haze. Linda Ronstadt and Jimmy Buffett appear in extended live concert scenes. Tom Petty, looking almost exactly the same as he does today, i.e., old, makes an in-studio appearance and REO Speedwagon is seen at a Tower Records meet and greet. It’s odd to see the plot of “us against The Man” revolve around boring, corporate-rock dinosaurs like the Eagles, Bob Seger, Foreigner and the Doobie Brothers which make up the station’s playlist. (The kind of music that punk rose up against a year or two earlier.)
The weirdly call-lettered QSKY is, of course, a fictional radio station. (They’re even located at “7-11 on your FM dial.” Huh?!) I’m not sure why they didn’t just go with KSKY or any other more believable set of calls. QSKY’s main competition in the movie is the more regularly-named KLAX.
I have a sticker from KLAX which is an actual Spanish language station in Los Angeles but I stuck it to some poster board years ago. Here's a couple from KSKY instead...

